Summary
The limit of the existing benefit for a good-faith beneficiary is distinguished from the scope of interest and damages owed by a bad-faith beneficiary.
5.1The Standard by Which the Path Opens
Even where the same benefit has been received, the state of knowing that it lacked a cause makes the restitution duty different. The preceding section distinguished restitution of value where return of the original thing is impossible from the liability of a statutory bad-faith acquirer. Taking up that conclusion, the question addressed at this stage is whether the recipient's knowledge changes the scope of restitution, and what the standard is for opening the pathway of this remedy. Recipient B claims to have received the performance sent by plaintiff A but to have learned later that there was no cause for payment. The place B's ex post awareness occupies in particularizing the scope of restitution becomes the starting point of the discussion below.
The statutory language is as follows. Article 748 of the Civil Act provides: "(1) A good-faith recipient is liable under the preceding Article to the extent the benefit received still exists. (2) A bad-faith recipient shall return the benefit received with interest added, and if there is any damage, shall compensate for it." The subject of this provision is the recipient who received the benefit, the conduct is the duty to return the benefit received, the condition in the good-faith case is the existence of the benefit, and the condition in the bad-faith case is the addition of interest and damages. The words "still exists" indicate that the duty to return binds a good-faith recipient not to the full amount of the benefit received but to the extent it still exists.
This language sets different scopes of restitution according to good faith and bad faith. The author's application is therefore that the entrance to this remedy opens where the connection between a benefit without cause and damage is recognized, the limitation on return does not apply, and the scope has been particularized, including good or bad faith and existing benefit. The reason the judgment limiting good-faith liability to existing benefit must be distinguished here from the judgment fixing the scope of the bad-faith recipient's interest and damages is that, while the former fixes the size of the benefit received itself, the latter brings even a duty to make good beyond that benefit within the scope. The recipient's good or bad faith is the distinction of whether the absence of a legal cause was known, and this distinction functions as a condition for particularizing the scope of restitution.
The counterargument that a claim of good faith can conceal a consumed benefit points out that, if a recipient uses a benefit while knowing that there was no cause for payment and then invokes good faith to narrow liability to the limit of existing benefit, the result is that a person who spent another's money avoids restitution. The loss this counterargument targets is the disadvantage by which the party with the restitution claim completely loses the benefit that could originally have been received, and the difficulty lies in the fact that the act of consumption is hard to prove. Still, the same scope of restitution cannot be applied wholesale to all recipients. A bad-faith recipient bears a broader scope consisting of the addition of interest and damages, so that abandoning the distinction between good and bad faith erases the very differential set by the provision itself.
The facts confirmed in the synthetic scene are nothing more than that B received the performance and the claim that B learned later of the fact that there was no cause for payment. That this claim speaks separately of awareness at the time of payment and ex post awareness touches the judgment structure that takes payment and cause, awareness at the time of payment, attribution of the illegal cause, existence of the benefit, and ex post awareness as record items. However, when and in what state B actually learned of it, and how much of the benefit received remains, are not particularized in the scene and thus remain undetermined. If it is confirmed that the illegal cause exists only in the recipient, the exclusion of return on the ground of performance with an illegal cause alone must be corrected; but this alters only the adjudication conditions for cases falling within the limitation on return and does not change the framework of particularization of scope already fixed.
The conclusion this section permits is that the entrance to this remedy opens where the connection between a benefit without cause and damage is recognized, the limitation on return does not apply, the scope has been particularized, including good or bad faith and existing benefit, the statement of claim is particularized, and the right in suit can be defended; the conclusion it does not permit is applying the same scope of restitution wholesale to all recipients.
5.2The Conditions That Block Relief
It distinguishes restitution of value where return of the original thing is impossible from the liability of a statutory bad-faith acquirer. What must be checked is the recipient's knowledge, which forms the axis of that distinction, how that knowledge divides the scope of restitution, and under what conditions the pathway of relief is not opened at all. In this scene, recipient B claims to have received the performance sent by plaintiff A but to have learned later of the fact that there was no cause for payment; this claim of ex post awareness does not directly lead to an admission of knowledge at the time of payment. Only by placing payment and cause, awareness at the time of payment, attribution of the illegal cause, existence of the benefit, and ex post awareness side by side is the position of this question fixed.
The source text corresponding to this question is Article 748 of the Civil Act. Its paragraph (1) provides "(1) A good-faith recipient is liable under the preceding Article to the extent the benefit received still exists," and paragraph (2) provides "(2) A bad-faith recipient shall return the benefit received with interest added, and if there is any damage, shall compensate for it." In this language, "recipient" means the person who received a benefit by unjust enrichment, and "good faith" and "bad faith" are, as defined earlier, the distinction of whether the absence of a legal cause was known. The qualification "to the extent it still exists" attaches to the good-faith recipient, and the addition of interest and damages attaches to the bad-faith recipient. By placing the two paragraphs side by side, the language makes clear that the size of the duty to return varies with the recipient's state of awareness. Provisions other than Article 748 are not addressed at this stage.
What this language indicates and the conclusion of this section point in the same direction. The recipient's knowledge changes the scope of restitution, and the limit of existing benefit for a good-faith recipient is distinguished from the scope of interest and damages for a bad-faith recipient. Why this distinction is necessary appears from the difference in the character of the two liabilities. A good-faith recipient is limited in liability to the remaining benefit, and thus bears no duty to restore a benefit that has already disappeared, whereas a bad-faith recipient, having received the benefit while knowing of the absence of a cause, adds interest to the benefit and makes good the damage as well. Meanwhile, the pathway of relief is not opened by being widened. Where a person paid knowing that no debt existed, or where the case falls within the limitation on return of performance with an illegal cause and there is no statutory exception, if even one of the statutory requirements is not satisfied, the pathway of relief is closed. In other words, the question of scope and the question of the pathway remain as separate stages of adjudication.
The strongest counterargument targets the loss this distinction leaves behind. If good faith is asserted, a consumed benefit can be concealed, and if liability is thereby narrowed to existing benefit, the result is that a person who spent another's money avoids restitution. The harm the counterargument points to is real: if the scope of restitution is reduced on the ground that the benefit already consumed no longer remains, the recipient enjoys the advantage gained from its use while bearing no burden. Yet the author's answer does not change. Even where the same benefit has been received, the fact that the breadth of liability divides according to whether the absence of a cause was known accords with the structure Article 748 divides into two paragraphs, and the burden the counterargument mentions is a consequence of this distinction, not a ground for eliminating it by uniform application.
The fact to be confirmed in the synthetic scene is that one claim and nothing more. The recipient merely says that it learned later of the fact that there was no cause for payment; the point that it did not know that fact at the time of payment is not yet confirmed. Ex post awareness, namely having learned later, is a record item distinct from awareness at the time of payment, and only if this claim is adopted does the case fall into the position where the liability of a bad-faith recipient is at issue. At the same time, the cause of the payment, to whom the illegal cause is attributed, and whether the benefit received still remains are not determined in this scene either. Accordingly, from the scene alone the scope of restitution is not particularized, and whether the conditions closing the pathway of this remedy are in place also remains undetermined. If it is confirmed that the illegal cause exists solely in the recipient, the contrasting sentence that the exclusion of return on the ground of performance with an illegal cause alone is corrected amounts to no more than a change in the conditions already stated.
In sum, the conclusion this section permits is narrow. Even if it is confirmed that the recipient's good or bad faith divides the scope of restitution, and that liability is fixed within the benefit that still exists if the recipient acted in good faith, and within the scope of interest and damages if in bad faith, it does not follow that that scope is immediately determined or that restitution can be obtained. Conversely, the mere fact that materials are lacking does not immediately mean that relief is impossible; what is confirmed is limited to a conditional distinction.
5.3The Boundary That Remains When There Is No Data
Leaving in place, within the same section, the framework distinguishing restitution of value where return of the original thing is impossible from the liability of a statutory bad-faith acquirer that the preceding stage of analysis addressed, this part deals with the case of insufficient materials. This claim puts two items at issue: the cause of the performance and the timing of B's awareness. Yet if there are no materials to check, how are those items to be handled?
To answer this question, one first confirms the language of the scope set by the provision. It fixes the scope of restitution as follows: "(1) A good-faith recipient is liable under the preceding Article to the extent the benefit received still exists. (2) A bad-faith recipient shall return the benefit received with interest added, and if there is any damage, shall compensate for it." Here, "a good-faith recipient" and "a bad-faith recipient" are subjects divided according to whether the absence of a legal cause was known, and "to the extent the benefit received still exists" is the condition indicating the scope for which the good-faith recipient is liable. However, this language does not specify to what extent the evidence necessary for that judgment must be in place.
The provision distinguishes the good-faith limit of existing benefit from the bad-faith scope of interest and damages because the recipient's knowledge changes the size of the duty to return. Even where the same benefit has been received, if the absence of a legal cause was known, the use of that benefit stands as the standard of liability; if it was not known, the remaining benefit becomes the standard. Yet for this distinction to operate, whether there was no cause for payment, whether this was known at the time of receipt, and what benefit remains now must be particularized as materials of judgment. To recognize something while those three items remain unconfirmed undermines the basis of that distinction, and to deny something is to draw a conclusion from materials that do not exist.
What the counterargument that a claim of good faith can conceal a consumed benefit most strongly targets here is the gap in the duty to return. If existing benefit alone is taken as the scope of liability, a person who spent another's money can escape accounting for the benefit already spent, and the loss can be shifted to the recipient's side. Even so, the same scope of restitution cannot be applied wholesale to all recipients. The provision divides good faith and bad faith because that division is tied to the fact-finding of the cause of payment and the recipient's knowledge; to impose a scope fixed in advance on a person for whom there is no basis of fact-finding produces a disadvantage different in kind from the disadvantage the counterargument identifies.
What is confirmed in this scene is only the fact that the performance was received, and the claim that the fact that there was no cause for payment was learned later. Whether there was no cause for payment, when this was learned, and how much of the benefit received remains now are not determined in the scene. The items to be taken as the record for judgment are the kinds of payment and cause, awareness at the time of payment, attribution of the illegal cause, existence of the benefit, and ex post awareness, and the content of that record itself has not been secured. Accordingly, this scene cannot render a judgment on whether the recipient acted in good faith or in bad faith, or on what benefit remains. Only the fact that those items remain unverified is fixed.
The conclusion that can be confirmed here is that, where the cause of payment or the recipient's knowledge and the remaining benefit cannot be confirmed, matters for which the materials of judgment are not particularized are left undetermined, distinguished from impossibility. That materials do not exist means that the scope of restitution cannot be fixed; it does not mean that the restitution claim itself fails to arise. Therefore, within the framework distinguishing the good-faith limit of existing benefit from the bad-faith scope of interest and damages, if the facts necessary for that distinction are confirmed, the corresponding scope is fixed, and if they are not confirmed, that part remains undetermined.
5.4The Records Needed for Determination
Building on that distinction, the question is now asked from the position of records. If, as B asserts, B did not know at the time of payment and learned of it afterward, what must be checked first in determining how far B's restitution extends and in setting its scope? This question is limited to whether the recipient's knowledge alters the scope of restitution, and to what records are needed in order to determine the timing of that knowledge.
Article 748 of the Civil Act divides the recipient's scope of restitution into two paragraphs. The first paragraph provides: "A recipient in good faith is liable under the preceding Article to the extent that the benefit received remains in existence." Here, a recipient in good faith is read as the person who received the benefit without knowing that there was no legal ground, and the words 'to the extent that it remains in existence' are read as pointing to the benefit that remains. The second paragraph provides that "a recipient in bad faith shall return the benefit received with interest added thereto" and, where there is damage, shall pay damages. A recipient in bad faith denotes the person who received knowing that there was no legal ground, and that liability does not remain at the existing benefit but widens to interest and damages. The language of the two paragraphs divides the subject into recipients in good faith and in bad faith, binds the act as the return of the benefit, and attaches as a condition the limit of existing benefit in the case of good faith.
To determine, as this language prescribes, which paragraph B's restitution is placed under, the five items of records prescribed by this section are checked. The Records on payment and ground show what performance there was and why; the records on awareness at the time of payment show when B came to know of the absence of that ground. Because the restriction on restitution varies according to whom the unlawfulness lies with, there must be a separate material for distinguishing the attribution of the unlawful ground; the existence of the benefit is the material that sets the limit of liability in the case of good faith; and post hoc awareness is the material that confirms or rejects B's assertion that the knowledge arose after payment. The stage is determined solely from the materials recorded in these five items. Missing Records are not filled with conjecture, and where there are no records, matters are left as they are without producing a confirmed stage.
The sharpest Counterargument is that benefits consumed can be concealed under a claim of good faith. That is, if a person who has already spent the benefit asserts only that he did not know, he avoids restitution on the ground that there is no existing benefit, and the result is that the person who spent another's money escapes liability. That loss and inconvenience are real and collide with the value of lightening liability. Nevertheless, the answer of this section does not change. Despite the concern, which the Counterargument targets, that consumption will be concealed, the language distinguishing the good-faith limit of existing benefit from the scope of interest and damages for bad faith cannot be discarded so as to bind the two into a single liability. Whether consumption was concealed is a problem that must be pointed out as it stands, and that pointing-out cannot be resolved by uniformizing the scope of restitution.
The facts recorded in this scene are one: that B received the performance sent by plaintiff A, and that B asserts that B later learned of the fact that there was no ground for payment. This fact alone does not confirm what B's awareness was at the time of payment, whether the benefit remains now, or to whom the unlawful ground is attributed. Thus neither the limit of existing benefit nor the breadth of bad-faith liability can be specified, and whether the case falls within the restriction on restitution cannot be judged from this record alone. If, however, it is confirmed that the unlawful ground lies only with the recipient, the contrast condition is clear: the exclusion of restitution on the sole ground of unlawful payment is corrected. This condition is not an addition of actual facts but a check that changes one condition of determination, and its result opens only when the records distinguishing that attribution are confirmed.
The conclusion this section permits is narrow. The stage is determined only to the extent confirmed by the materials recorded on payment and ground, awareness at the time of payment, attribution of the unlawful ground, existence of the benefit, and post hoc awareness, and the places without records are left unfilled. What this section does not permit is to fix the timing of B's knowledge by conjecture without records, or to assign the same scope of restitution to every recipient without distinguishing good faith from bad faith. The restitution and scope of unjust enrichment operate where the connection between the benefit without ground and the damage is recognized, where the restriction on restitution is not triggered, and where the scope, such as good or bad faith and existing benefit, is specified.
5.5Circumstances That Change the Decision
Because the preceding stage has already distinguished restitution of value, where return of the original thing is impossible, from the liability of a statutory bad-faith acquirer, what remains is whether B's post hoc awareness goes beyond that distinction and changes the scope of restitution itself. This question asks together what change the recipient's knowledge brings to the scope of restitution, and what alteration reverses a stage determination already made.
Its paragraph (1) declares: "①A recipient in good faith is liable under the preceding Article to the extent that the benefit received remains in existence." (Article 748 of the Civil Act) Here, a recipient means a person who received the benefit without ground, and good faith means the state of not having known, at the time of receipt, that there was no legal ground. The ceiling of liability that the language sets is the extent to which the benefit received remains in existence. Paragraph (2) of the same Article, "②A recipient in bad faith shall return the benefit received with interest added thereto and, if there is damage, shall compensate for it" (Article 748 of the Civil Act), adds restitution with interest and damages. This language alone cannot fix the point in time or the method of consumption or disposition, so the analysis goes no further here.
The language above takes the point in time of knowledge as the criterion for the scope of liability. Because a recipient in good faith is liable only to the extent of the benefit that remains in existence, if the benefit received has already been spent and nothing is left, liability is narrowed within that range. A recipient in bad faith is not subject to that limit, returns the benefit with interest added, and, where there is damage, pays damages. The reason the two liabilities are divided in this way is that the state of continuing to hold the benefit after learning that there was no legal ground is not the same as before. In addition, if it is confirmed that the unlawful ground lies only with the recipient, the exclusion of restitution on the sole ground of unlawful payment is corrected. Once that alteration is confirmed, the existing judgments of blocking and of effectiveness are discarded and the stage is determined anew from the beginning.
The strongest counterargument lies in the point that benefits consumed can be concealed under a claim of good faith. If a recipient spends all the benefit received and then claims from the outset that he did not know, the restriction called the limit of existing benefit is in substance used as a channel for evading restitution. Since the result arises that the person who profited at another's expense sheds liability, the loss the counterargument aims at is concrete. If the limit of existing benefit is abolished while knowledge remains unspecified, the interest and damages required of a recipient in bad faith reach as far as a recipient in good faith, and the two ranges the provision divided collapse. The inconvenience of the counterargument is left as a problem to be resolved by clarifying the point in time of knowledge through records.
The facts confirmed in the synthetic scene are only the receipt of the performance and the post hoc awareness that there was no ground for payment. B's assertion is that B learned of it later; therefore the point in time of awareness at the time of payment and that of post hoc awareness must be distinguished in the records. If payment and ground, awareness at the time of payment, attribution of the unlawful ground, existence of the benefit, and post hoc awareness are confirmed, the intervals of good faith and bad faith are divided by those points in time and the scope of restitution is specified. However, because the scene contains no year or amount, nor the time and method of consumption, the amount of existing benefit and the scope of interest cannot be fixed here. The result of performance or the recovery outcome of an actual case is likewise a matter that cannot be determined from the scene, and thus remains undetermined.
The conclusion of this section is narrow. The recipient's knowledge alters the scope of restitution, and once he learns that there was no legal ground, the good-faith limit of existing benefit and the scope of interest and damages of a recipient in bad faith are viewed differently. Yet this section does not permit a conclusion that refuses restitution itself merely because the point in time of knowledge has not been specified, nor a conclusion that applies a single range to all recipients and thereby erases the distinction between good faith and bad faith. The distinction between restitution of value and the liability of a statutory bad-faith acquirer, examined above, is maintained as it stands.
5.6The Strongest Counterargument and the Answer
With the question whether B's knowledge in this scene alters the scope of restitution placed first, the good-faith limit of existing benefit is distinguished from the scope of interest and damages for bad faith. This distinction departs from the premise that even for the same benefit, the breadth of liability differs according to the state of knowledge.
The source text corresponding to this question is Article 748 of the Civil Act. Its language provides: "A recipient in good faith is liable under the preceding Article to the extent that the benefit received remains in existence." In this sentence, a recipient in good faith denotes the person who received without knowing that there was no legal ground; the benefit received denotes what was obtained by the performance; and the extent to which it remains in existence denotes the range in which that benefit remains. Paragraph (2) of the same Article provides that "a recipient in bad faith shall return the benefit received with interest added thereto and, if there is damage, shall compensate for it," thereby placing interest and damages within the scope of restitution for a recipient in bad faith.
When the subject indicated by this language and the conditions of the act are unpacked in the same terms, the good or bad faith of the recipient means the distinction of whether he knew that there was no legal ground. Where he did not know that there was no ground for payment, he is liable to the extent the benefit received remains in existence; where he knew of that fact, he adds interest to the benefit received and, if there is damage, pays damages. The reason two persons who received the same benefit are not bound into one range but divided into good faith and bad faith is that knowledge is the criterion setting the breadth of the duty of restitution. Accordingly, the same scope of restitution cannot be applied wholesale to all recipients.
The counterargument raised most strongly against this distinction aims at the point that, if liability is narrowed by existing benefit, the result arises that the person who spent another's money avoids restitution. If the benefit received has already been spent and nothing remains, a recipient in good faith is liable only to the extent that it remains in existence, so the disadvantage may arise that there is nothing to return. Yet if the same scope of restitution is applied wholesale to all recipients in order to eliminate this loss, the result is that even the interest and damages imposed on a recipient in bad faith are imposed on a recipient in good faith as well. Without erasing the inconvenience the counterargument points out, the conclusion can be maintained that even where the same benefit is received, the state of knowing that there is no ground for it makes the duty of restitution different.
In the synthetic scene, B's assertion is that at the time B received the performance B did not know of the fact that there was no ground for payment and learned of it later. If this assertion is confirmed, B's scope of restitution is specified as divided into the good-faith limit of existing benefit and the scope of interest and damages for bad faith. However, if there are no materials to check the performance and ground, the awareness at the time of payment, the existence of the benefit, and the post hoc awareness, that scope remains undetermined. The conclusion this section permits is to distinguish the good-faith limit of existing benefit from the scope of interest and damages for bad faith, while laying down together the limitation that the scope is not fixed by B's assertion alone.
What is settled in this section is only the criterion of distinction that the same scope of restitution cannot be applied wholesale to all recipients. Here the good or bad faith of the recipient means the distinction of whether he knew that there was no legal ground; a recipient in good faith is liable to the extent that it remains in existence, and a recipient in bad faith bears interest and damages as well.
5.7The Link to the Application and the Dispositive Part
Following the premise that the same scope of restitution cannot be applied wholesale to all recipients, even where the same benefit is received, the state of knowing that there is no ground for it makes the duty of restitution different. The question now addressed is whether the recipient's knowledge alters the scope of restitution. To answer it, at issue together are to what limit the recipient bears the duty to return the benefit obtained by a void performance, and what the state of awareness is at the point in time that fixes that limit. To state the conclusion first, the good-faith limit of existing benefit is distinguished from the scope of interest and damages for bad faith. B, the recipient, asserts that although B received the performance sent by plaintiff A, B learned of the fact that there was no ground for payment later, and the point in time of that knowledge is precisely the divider of this distinction.
The language creating this distinction is found in Article 748 of the Civil Act. This provision displays a structure divided into paragraphs as they stand: the language of paragraph (1) is "A recipient in good faith is liable under the preceding Article to the extent that the benefit received remains in existence," and paragraph (2) is "A recipient in bad faith shall return the benefit received with interest added thereto and, if there is damage, shall compensate for it." Here the subject denoted by the language is the recipient who obtained the benefit by the performance, the act is the return of the benefit received, and good or bad faith is precisely the condition of the duty of restitution. There is no need to examine further at this point the requirements of liability under the preceding Article or other issues written in the provision.
The reason these two paragraphs are not bound into one is that the size of liability differs according to whether there is knowledge. If the recipient is in good faith, the duty of restitution is bound to the extent that the benefit received remains in existence; if he is in bad faith, restitution with interest added to the same benefit and damages are imposed together. Here lies the reason the limit called existing benefit must be distinguished from the additional range of interest and damages. This is the allocation of language prescribed by the provision, not a new requirement or exception added by the author. The good or bad faith of the recipient means the distinction of whether he knew that there was no legal ground, and that knowledge divides the scope of restitution.
The counterargument starts from the point that benefits consumed can be concealed under a claim of good faith. If a recipient, having left no benefit through consumption or disposition, asserts good faith, the limit of existing benefit can be used as a shield that neutralizes restitution. In that case the result arises that the person who spent another's money avoids actual restitution, and the person who made the claim for restitution loses the original benefit. Yet within the scope of the foregoing answer, this conclusion is maintained. The circumstance that the claim of good faith concealed the consumption of the benefit is left as the unfavorable part of the counterargument, but on that ground alone one cannot pull everything up into good faith as far as the range of bad faith.
The facts confirmed in the synthetic scene are that there was a performance, and that B, the recipient, asserts that B later learned of the point that there was no ground for payment. Comparing these facts with the conditions of Article 748 of the Civil Act, if B knew that there was no ground for payment, the period before the point in time of knowledge becomes the interval considered under the good-faith limit, and the period after it becomes the interval under the bad-faith range. However, at what point B's assertion is actually fixed, and what the awareness at the time of the performance and the remaining benefit amounted to, is not determined by this scene alone. Accordingly, the parts in which the point in time of knowledge and the range of existence of the benefit are unconfirmed are left undetermined, and it is not judged that the duty of restitution is immediately absent on account of those circumstances.
The conclusion this section permits is to place the recipient's knowledge as the distinction of whether he knew that there was no legal ground, and accordingly to divide the good-faith limit of existing benefit from the scope of interest and damages for bad faith and to judge between them. The conclusion this section does not permit is, on the mere fact that a benefit was received, to apply the same scope of restitution wholesale to all recipients. Only after the presence and the point in time of knowledge and the existence of the benefit are specified is it decided which range applies.
5.8The Scope This Section Undertakes
This contention places the awareness at the time of payment side by side with the awareness acquired afterward. The question here is how this knowledge changes the scope of the obligation to return. The other issues raised by the provision are left behind this question.
The relevant text determines the scope of the recipient's return under Article 748 of the Civil Act. Its paragraph (1) provides, "A recipient in good faith is liable under the preceding Article only to the extent that the benefit received still exists" (Article 748 of the Civil Act). Here, a recipient in good faith means a person who did not know that the benefit received was received without any legal ground, and "the extent that it still exists" means the scope of the benefit remaining at the time of return. The phrase "liable under the preceding Article" is an expression premised on the principle that the obligation to return the original thing is the rule. The text of this paragraph limits the scope of return by binding together the recipient's knowledge and the amount of the benefit remaining.
The same provision makes clear that the recipient's knowledge serves as the criterion dividing the scope of return. Its paragraph (2) provides, "A recipient in bad faith shall return the benefit received together with interest and, if there is damage, compensate for it" (Article 748 of the Civil Act). A recipient in bad faith means a person who knew that the benefit was received without any legal ground, and this paragraph adds interest to the scope of return and extends it to damages as well. This is the reason for distinguishing the good-faith limit of the existing benefit from the bad-faith scope of interest and damages. The limitation of the preceding paragraph and the extension of the following paragraph are drawn at the boundary of the recipient's good or bad faith, that is, the distinction of whether the absence of a legal ground was known. If the two paragraphs were combined into a single scope, the textual meaning of this distinction would disappear.
The strongest counterargument aims at the point that a claim of good faith could conceal a benefit that has been consumed. If liability is narrowed to the existing benefit, the result is that a person who has spent another's money avoids return. This loss and inconvenience are not erased, and the conclusion is maintained nonetheless. The provision places different scopes on good faith and bad faith precisely because it presupposes that the recipient's knowledge is a variable that changes the degree of the obligation to return. The possibility of concealment that the counterargument points out is no ground for abolishing the distinction between good faith and bad faith.
In the synthetic scene, the fact relevant to this question is that the recipient B received the performance and claims to have learned only later that there was no ground for the payment. This fact leaves a record that separates the awareness at the time of payment from the awareness acquired afterward. When and in what state B learned of it, how much benefit remains, and whether there is damage are not determined by the scene. B's assertion alone does not establish good faith or bad faith.
The conclusion this section permits goes no further than distinguishing the scope of return according to the recipient's good or bad faith. A recipient in good faith is liable to the extent of the existing benefit, and a recipient in bad faith is liable within a scope that includes interest and damages. What it does not permit is a conclusion that applies the same scope of return uniformly to all recipients. Nor does this section establish the legal conclusion that bad faith is found, or presumed, merely from the absence of a ground for the performance. The calculation of amounts and the determination of damage are not settled by the scene and remain undetermined.
5.9Application of the Text of the Provisions and the Holdings of Precedents
It asks why the scope of return differs even around the same performance. The relevant source text, Article 748 of the Civil Act, provides for the recipient's scope of return. The same source divides the scope of liability as follows: "(1) A recipient in good faith is liable under the preceding Article only to the extent that the benefit received still exists. (2) A recipient in bad faith shall return the benefit received together with interest and, if there is damage, compensate for it." This text presupposes two categories of actor, the recipient in good faith and the recipient in bad faith, and makes the benefit each has received the object of return. The preceding paragraph, however, attaches the condition "to the extent that it still exists," while the following paragraph requires that interest be added.
To use this text as the basis for adjudging return and scope, two stages must be distinguished. First, one examines whether the person who received the benefit that is the object of the obligation to return is a recipient. Second, one specifies the scope according to whether that recipient knew that there was no legal ground. After distinguishing, in accordance with the conclusion of the preceding stage, return of value where return of the original thing is impossible from the liability of a bad-faith acquirer as prescribed by law, one then applies separately the good-faith limit of the existing benefit and the bad-faith scope of interest and damages. Since the same scope of return cannot be applied uniformly to all recipients, the two are not bound into one scope without this distinction.
The strongest counterargument is that a claim of good faith becomes a channel for concealing a benefit that has been consumed. If the recipient, having spent the benefit received, merely asserts that he was in good faith from the outset, the condition "to the extent that it still exists" reduces the obligation to return, and plaintiff A bears the loss instead. The conclusion cannot be maintained as though this disadvantage did not exist. Insofar as the text has divided the scopes of liability for good faith and for bad faith, the plaintiff's inconvenience in being unable to prevent the consumption remains as it is, but the distinction of scopes itself is not abolished.
The fact established in the synthetic scene is only that the recipient B received the performance and claims to have learned later that there was no ground for the payment. This assertion is material for judging the distinction of whether the absence of a legal ground was known—that is, the recipient's good or bad faith—and it records separately the awareness at the time of payment and the awareness acquired afterward. Among the payment and its ground, the awareness at the time of payment, the attribution of the illegal cause, the existence of the benefit, and the later awareness, the items that remain for this section are the timing of awareness and the existence of the benefit. The amount, the starting date, and the outcome of the judgment are not determined and therefore cannot be specified. Unless the ground for payment, B's knowledge, and the benefit remaining can be confirmed, the scope remains undetermined.
The conclusion this section permits is, on the text of Article 748 of the Civil Act alone, to distinguish the good-faith limit of the existing benefit from the bad-faith scope of interest and damages. It applies only the text within the scope of the relevant source and does not extend it to the reasons for the judgment or to other paragraphs. While not denying the counterargument that a claim of good faith conceals a benefit that has been consumed, it does not, for that reason, reach the conclusion of applying the same scope of return to all recipients.
5.10Fine Distinctions Within the Stage
Does the knowledge of the person who received the performance change the scope of return? What is to be decided this time is whether, in this scene, the scope of return varies according to the point at which B's knowledge arose. Leaving intact the return of value and the liability of a bad-faith acquirer that the preceding stage has separated, one looks for a place within them to divide again.
The text provides that "a recipient in good faith is liable under the preceding Article only to the extent that the benefit received still exists," and then provides that "a recipient in bad faith shall return the benefit received together with interest and, if there is damage, compensate for it." Here, the recipient is the person who received the performance, and good faith and bad faith denote the distinction of whether the absence of a legal ground was known. "To the extent that it still exists" refers to the scope in which the benefit received remains now, and interest and damages refer respectively to the additional burdens imposed on the recipient in bad faith.
This text divides the scope of the obligation to return into two branches according to the recipient's knowledge. On a recipient in good faith it imposes liability only up to the limit of the benefit remaining, while on a recipient in bad faith it adds interest and damages. The reason the two paragraphs must be distinguished is that the standard for determining the size of liability differs in each case. One takes as its standard what remains now; the other adds interest to the whole of the benefit received and reckons damage as well. This distinction does not overlap with the preceding stage's separation of return of the original thing from return of value; it remains a question of fixing the scope within a single return.
The point most strongly targeted by the counterargument that a claim of good faith can conceal a consumed benefit is the result that, when the recipient asserts that the benefit has already been spent, he escapes return by saying that nothing remains. Since the person who spent another's money avoids liability, the loss and inconvenience are plain. The provision's division of good faith and bad faith in defining liability means that it did not disregard the state of knowledge and bind them into one scope. The gap the counterargument points out is left in place, but the two scopes are not merged on that account.
The fact established in the synthetic scene is that B received the performance and claims to have learned later that there was no ground for the payment. Both the awareness at the time of payment and the later awareness are subjects of record, and it is also confirmed whether the benefit still remains now. When B learned of it, the amount of the performance, and the amount of the benefit remaining are not determined in this scene. The condition that, if the illegal cause is confirmed to lie only with the recipient, the exclusion of return based solely on the reason of an illegal payment is to be corrected, is merely one check to be taken into account when judging the restriction of return, and is not a fact already established in this scene. Accordingly, what can be determined at the present stage is only a conditional distinction, and the size of individual liability remains undetermined.
What this section permits is the judgment that divides the scope of return on the basis of the recipient's knowledge, matching good faith with the extent to which the benefit still exists and bad faith with interest and damages, respectively. It does not permit adding a new stage here, applying one scope to all recipients, or reaching conclusions that fill in amounts and points of time that have not been confirmed.
5.11Synthesis of Effectiveness, Blockage, and Undetermination
The preceding section made clear that the recipient's good or bad faith means the distinction of whether the absence of a legal ground was known. That distinction operates independently of the existence of the obligation to return, as a standard that narrows or widens an already established scope of return. B's assertion divides the awareness at the time of payment from the awareness acquired afterward, and asks what result that interval produces for the judgment of scope. This question is situated at the point that determines how far the remaining benefit and interest and damage follow once the obligation to return has arisen.
The text corresponding to this question is Article 748 of the Civil Act. Paragraph (1) of the same Article provides that "a recipient in good faith is liable under the preceding Article only to the extent that the benefit received still exists," and paragraph (2) provides that "a recipient in bad faith shall return the benefit received together with interest and, if there is damage, compensate for it" (Article 748 of the Civil Act). The former paragraph denotes the actor whose liability is capped at the limit of the benefit remaining, and the latter the actor who bears interest and damage without that cap. What the two paragraphs divide is not the existence or nonexistence of the performance itself, but the state of whether the absence of a legal ground was known at the time the performance was received. Here, the recipient's good or bad faith means the distinction of whether the absence of a legal ground was known. Since this provision does not directly determine the attribution of the illegal cause or the statutory exceptions to the exclusion of return, those issues fall outside the scope entrusted to the other stages of judgment in the same section.
What connects this text with the conclusion of this section is that the task of specifying the scope after the obligation to return has arisen is a separate stage. If the connection between the benefit without cause and damage is recognized and the restriction of return does not apply, the door to liability opens; but only when the good faith and bad faith and the existing benefit divided by paragraphs (1) and (2) are specified is the scope beyond that door determined. In the case of good faith, the extent to which the benefit received still exists becomes the cap; in the case of bad faith, interest is added to the benefit received and, if there is damage, compensation is added (Article 748 of the Civil Act). The reason the two scopes must be distinguished is that the former paragraph embodies the intent to limit liability by the benefit remaining, while the latter includes interest and damage without that limitation. Even for the same benefit, the breadth of return varies according to whether the recipient knew of the absence of a cause, and therefore the judgment as to the arising of liability and the judgment as to scope cannot be handled as a single bundle.
This distinction carries a marked inconvenience. If a benefit already consumed is concealed under a claim of good faith, the obligation to return may be greatly reduced on the ground that no benefit remains. The criticism that the person who spent another's money avoids return directly targets the loss produced by the rule that narrows liability to the existing benefit. Article 748 of the Civil Act divides the scopes of good faith and bad faith into paragraphs (1) and (2) precisely because it presupposes that the breadth of return varies with the recipient's state of awareness (Article 748 of the Civil Act). What this answer does not erase is the loss pointed out by the counterargument. The good-faith limit of the existing benefit remains as it is and does not restore the benefit diminished by consumption, and that limit is the part borne as the price of separately confirming each recipient's state of awareness.
The fact established in this scene is that the recipient B received the performance from plaintiff A and claims to have learned later that there was no ground for the payment. This assertion divides the awareness at the time of payment from the awareness acquired afterward, but the scene alone does not determine at what point the absence of a legal ground became known, what the ground for the payment was, or how much of the benefit received remains. B's assertion of later awareness may be examined as grounds supporting the scope of paragraph (2) for bad faith, but since the awareness at the time of payment has not been confirmed, it cannot be categorically stated that the scope is limited to that of paragraph (1) for good faith (Article 748 of the Civil Act). Unless the records of the payment and its ground, the awareness at the time of payment, the existence of the benefit, and the later awareness are assembled, which scope the remaining benefit and the interest and damage fall into remains undetermined. This undetermined state does not mean that there is no obligation to return; it means that there is as yet no ground for specifying the scope.
The conclusion this section permits is narrow. If the connection between the benefit without cause and damage is recognized, the restriction of return does not apply, and the scope has been specified—including good or bad faith and the existing benefit—then the return and its scope operate. Where the payer performed with knowledge that no debt existed, or where the case falls within the restriction on return of a payment for an illegal cause and no statutory exception applies, the claim is barred; and where the ground for payment, the recipient's knowledge, and the benefit remaining cannot be confirmed, the matter remains undetermined. Beyond this, this distinction does not permit either applying one scope to all recipients or reading the undetermined state as equivalent to an absence of relief.
5.12Conclusion Carried Over to the Next Section
Up to that point, it is enough to remember only that the return of value where return in kind is impossible was distinguished from the liability of an acquirer in bad faith by operation of law. Now, in the scene where the beneficiary claims to have received the performance sent by plaintiff A but to have learned afterwards that there was no ground for the payment, the question remains whether the recipient's knowledge alters the scope of restitution. Whether liability is the same from the very outset even though the time of knowledge comes later, as in B's claim, is particularly at issue.
That paragraph (1) provides that "a beneficiary in good faith is liable under the preceding Article to the extent the benefit received still exists." The party indicated by this language is the beneficiary who received a benefit without legal ground, and among such parties, the beneficiary in good faith who, at the time of receipt, did not know that there was no ground. The condition is the extent to which the benefit received still exists, and the effect is the bearing of liability under the preceding Article within that extent. Paragraph (2) of the same Article requires that interest be added and damages be paid by a beneficiary in bad faith.
The distinction between the two paragraphs is the axis of the conclusion of this section. The limitation to existing benefit in paragraph (1) is a restriction that, unlike return in kind, does not compel restoration of benefits that no longer remain, while paragraph (2) shifts even interest and damages onto a recipient who knew that there was no ground. In the preceding section the author separated return of value from the liability of an acquirer in bad faith by operation of law, and that distinction here leads to the difference in the scope of restitution between good faith and bad faith. In other words, the criterion for measuring the weight of liability is not only the size of the benefit received but also the distinction as to whether the absence of legal ground was known. The reason for distinguishing the limitation to existing benefit in good faith from the scope of interest and damages in bad faith lies in this difference of conditions.
The strongest counterargument targets the side of the loss. It is said that if one claims good faith while concealing benefits that have in fact already been consumed, that loss remains in the beneficiary's pocket, yet the scope of restitution is narrowed to existing benefit, with the result that one who spent another person's money escapes restitution. This disadvantage is not erased. The author's answer, however, is settled. Even if the reduction of the limitation to existing benefit operates as a burden favoring some beneficiaries, that cannot be a reason for imposing interest and damages equally upon all, without regard to good faith or bad faith.
In the synthetic scene, only the facts that B received the performance and that B claimed to have learned afterwards that there was no ground for the payment are given. If that claim holds, B's knowledge arose not at the time of receipt but afterwards, so the perception at the time of payment and the later perception are entered in the records as different items. Other items of the records, such as the attribution of an unlawful cause or whether the benefit still exists, are not determined by this scene alone. Accordingly, on the scene alone B cannot immediately be fixed as being in bad faith, and whether the limitation to existing benefit will apply also remains undetermined.
The conclusion permitted by this section is narrow. The good or bad faith of the beneficiary means the distinction as to whether the absence of legal ground was known, and since the scope of restitution varies with that distinction, a beneficiary in good faith is liable to the extent of the benefit that still exists, while a beneficiary in bad faith bears even interest and damages. What is not permitted is to disregard that distinction and to set the same scope for every beneficiary, or to fix the time of B's knowledge from facts absent from the scene. If one is in good faith at the outset, does the same liability persist to the end?