Instruct: Given a legal statement, retrieve articles that support it
Query: 
The obligee(B) may not perform the obligation which he/she contracts with a third party by assigning the claim which the obligor(A) contracts with the obligee(B) to the third party as a substitute against the will of the obligor(A).


Article 482
If a person that has right to perform an obligation (hereinafter referred to as a "performer") concludes a contract with the obligee to the effect that the person is to have the obligation extinguished by making, in lieu of the payment or delivery to be performed by the obligor, another type of payment or delivery, and the performer makes that other type of payment or delivery, the payment or delivery thus made has the same effect as that of the performance of the obligation..


Article 434
If the obligor has a claim against one of the joint and several obligees, and the obligor invokes a set-off, the set-off becomes effective against other joint and several obligees as well..


Article 414
(1) If an obligor voluntarily fails to perform an obligation, the obligee may request the court to enforce obligor to perform through methods such as direct compulsion, execution by substitution, or indirect compulsion, in accordance with the provisions of the Civil Execution Act and other laws and regulations concerning the procedure for compulsory execution;provided, however, that this does not apply if the nature of the obligation does not permit the enforcement.
(2) The provisions of the preceding paragraph do not preclude claiming compensation for loss or damage.
Article 415
(1) If an obligor fails to perform consistent with the purpose of the obligation or the performance of an obligation is impossible, the obligee may claim compensation for loss or damage arising from the failure;provided, however, that this does not apply if the failure to perform the obligation is due to grounds not attributable to the obligor in light of the contract or other sources of obligation and the common sense in the transaction.
(2) If the obligee is entitled to claim compensation for loss or damage pursuant to the provisions of the preceding paragraph, and any of the following cases applies, the obligee may claim compensation for loss or damage in lieu of the performance of the obligation:
(i) the performance of the obligation is impossible;
(ii) the obligor manifests the intention to refuse to perform the obligation; or
(iii) the obligation has arisen from a contract, and the contract is cancelled or the obligee acquires the right to cancel the contract on the ground of the obligor's failure to perform the obligation..


Article 596
The provisions of Article 551
apply mutatis mutandis to loans for use.
Article 551
(1) The donor is presumed to have promised to deliver or transfer the thing or right that is the subject matter of the gift, while maintaining its condition as of the time when it is specified as the subject matter of the gift.
(2) With respect to gifts with burden, the donor provides the same warranty as that of a seller, to the extent of that burden.
Article 415
(1) If an obligor fails to perform consistent with the purpose of the obligation or the performance of an obligation is impossible, the obligee may claim compensation for loss or damage arising from the failure;provided, however, that this does not apply if the failure to perform the obligation is due to grounds not attributable to the obligor in light of the contract or other sources of obligation and the common sense in the transaction.
(2) If the obligee is entitled to claim compensation for loss or damage pursuant to the provisions of the preceding paragraph, and any of the following cases applies, the obligee may claim compensation for loss or damage in lieu of the performance of the obligation:
(i) the performance of the obligation is impossible;
(ii) the obligor manifests the intention to refuse to perform the obligation; or
(iii) the obligation has arisen from a contract, and the contract is cancelled or the obligee acquires the right to cancel the contract on the ground of the obligor's failure to perform the obligation..


Article 612
(1) A lessee may not assign the lease or sublease a leased thing without obtaining the approval of the lessor.
(2) If the lessee allows any third party to make use of or take the profits of a leased thing in violation of the provisions of the preceding paragraph, the lessor may cancel the contract..


Article 446
(1) A guarantor has the responsibility to perform the obligation of the principal obligor when the latter fails to perform that obligation.
(2) No guarantee contract becomes effective unless it is made in writing.
(3) If a guarantee contract is concluded by electronic or magnetic record which records the terms thereof, the guarantee contract is deemed to be made in writing, and the provisions of the preceding paragraph apply..


Article 478
Performance made to a person that does not constitute a person authorized to accept the performance (meaning the obligee or a third party authorized to accept performance based on the provisions of laws and regulations or the manifestation of intention of the parties; the same applies hereinafter) but that appears to be the person authorized to accept the performance in light of common sense in the transaction is effective only if the person effecting performance was acting in good faith and without negligence.
Article 479
Except as provided in the preceding Article, any performance made to a person other than the person with right to performance is effective only to the extent that the obligee is enriched as a result thereof..


Article 452
If an obligee has requested performance of an obligation from the guarantor, the guarantor may request the obligee to demand performance of the principal obligor first;provided, however, that this does not apply if the principal obligor is subject to an order commencing bankruptcy proceeding or if the principal obligor's whereabouts are unknown..


Article 707
(1) If a person that is not an obligor has performed an obligation by mistake and the obligee, acting in good faith, has allowed the instrument to be lost, has damaged the instrument, has waived the security, or has lost the claim by prescription, the person performing the obligation may not demand the return of subject matter of the performance.
(2) The provisions of the preceding paragraph do not preclude the person performing an obligation from exercising the right to reimbursement against the obligor..


Article 117 (1) A person who concludes a contract as an agent of another person is liable to the counterparty for the performance of the contract or compensation for loss or damage, as chosen by the counterparty, unless the person proves the authority to represent or the principal ratifies the contract.
(2) The provisions of the preceding paragraph do not apply in the following cases:
(i) if the counterparty knew that the person who concluded the contract as an agent of the other person had no authority to represent;
(ii) if the counterparty was negligent in not knowing that the person who concluded the contract as an agent of the other person had no authority to represent; provided, however, that this does not apply if the person who concluded a contract as an agent of the other person knew themselves to have no authority to represent; or
(iii) if the legal capacity to act of the person who concluded the contract as an agent of the other person was subject to restrictions.


Article 441
Except in cases prescribed in Articles 438, Article 439, paragraph (1), and the preceding Article, any circumstances which have arisen with respect to one of the joint and several obligors is not effective in relation to other joint and several obligors;provided, however, that if the obligee and one of the other joint and several obligors manifest a different intention, their intention prevails with respect to the effect in relation to the remaining other joint and several obligees..


Article 102
An act that a person with qualified legal capacity performs as an agent of another person may not be rescinded on the grounds of qualified legal capacity;provided, however, that this does not apply to an act performed by a person with qualified legal capacity as a legal representative of another person with qualified legal capacity..


Article 462
(1) The provisions of Article 459-2, paragraph (1) apply mutatis mutandis if a person, that has given guarantee without the request of the principal obligor, performs an act for extinguishment of obligation.
(2) A person that has become a guarantor against the will of the principal obligor has the right to reimbursement only to the extent currently enriched.In this case, if the principal obligor asserts to have grounds for set-off against the obligee prior to the day of the demand for reimbursement, the guarantor may demand that the obligee perform the obligation which would have been extinguished by that set-off.
(3) The provisions of Article 459-2, paragraph (3) apply mutatis mutandis to the exercise of the right to reimbursement if the guarantor referred to in the preceding two paragraphs performs an act for extinguishment of obligation before the due date of the principal obligation..


Article 415 (1) If an obligor fails to perform consistent with the purpose of the obligation or the performance of an obligation is impossible, the obligee may claim compensation for loss or damage arising from the failure; provided, however, that this does not apply if the failure to perform the obligation is due to grounds not attributable to the obligor in light of the contract or other sources of obligation and the common sense in the transaction.
Article 561 If the subject matter of a sale is another person's right (including a part of a right that belongs to another person), the seller bears an obligation to acquire the right and transfer it to the buyer.


Article 166
(1) A claim is extinguished by prescription in the following cases:
(i) if the obligee does not exercise the right within five years from the time when the obligee came to know that it was exercisable; or
(ii) if the obligee does not exercise the right within 10 years from the time when it became exercisable.
(2) A claim or property right other than ownership is extinguished by prescription if not exercised within 20 years from the time when the right became exercisable.
(3) The provisions of the preceding two paragraphs do not preclude the commencement of acquisitive prescription for the benefit of a third party that possesses the subject matter of a right with a time of commencement or a right subject to a condition precedent, at the time of commencing the possession;provided, however, that the holder of the right may demand acknowledgment from the possessor at any time to renew the prescription period.
Article 412
(1) If a fixed due date is assigned to the performance of an obligation, the obligor is liable for delay from the time that due date arrives.
(2) If an uncertain due date is assigned to the performance of an obligation, the obligor is liable for delay from the time when the obligor receives the request for performance after the due date arrives or the time when the obligor becomes aware of the arrival of that due date, whichever comes earlier.
(3) If no time limit is assigned to the performance of an obligation, the obligor is liable for delay from the time the obligor receives the request for performance..


Article 536 (1) If the performance of an obligation becomes impossible due to grounds not attributable to either party, the obligee may refuse to perform counter-performance.


Article 478
Performance made to a person that does not constitute a person authorized to accept the performance (meaning the obligee or a third party authorized to accept performance based on the provisions of laws and regulations or the manifestation of intention of the parties; the same applies hereinafter) but that appears to be the person authorized to accept the performance in light of common sense in the transaction is effective only if the person effecting performance was acting in good faith and without negligence.
Article 479
Except as provided in the preceding Article, any performance made to a person other than the person with right to performance is effective only to the extent that the obligee is enriched as a result thereof..


Article 596
The provisions of Article 551
apply mutatis mutandis to loans for use.
Article 551
(1) The donor is presumed to have promised to deliver or transfer the thing or right that is the subject matter of the gift, while maintaining its condition as of the time when it is specified as the subject matter of the gift.
(2) With respect to gifts with burden, the donor provides the same warranty as that of a seller, to the extent of that burden.
Article 415
(1) If an obligor fails to perform consistent with the purpose of the obligation or the performance of an obligation is impossible, the obligee may claim compensation for loss or damage arising from the failure;provided, however, that this does not apply if the failure to perform the obligation is due to grounds not attributable to the obligor in light of the contract or other sources of obligation and the common sense in the transaction.
(2) If the obligee is entitled to claim compensation for loss or damage pursuant to the provisions of the preceding paragraph, and any of the following cases applies, the obligee may claim compensation for loss or damage in lieu of the performance of the obligation:
(i) the performance of the obligation is impossible;
(ii) the obligor manifests the intention to refuse to perform the obligation; or
(iii) the obligation has arisen from a contract, and the contract is cancelled or the obligee acquires the right to cancel the contract on the ground of the obligor's failure to perform the obligation..


Article 443 (1) If one of the joint and several obligors performs the obligation or otherwise obtains a common discharge in exchange for that obligor's own property, while knowing the existence of other joint and several obligors but without giving notice of the common discharge to the other joint and several obligors, another joint and several obligor has a defense that can be duly asserted against the obligee, the other joint and several obligor may duly assert that defense against the joint and several obligor that obtained the discharge to the extent of the other obligor's share of the obligation. In such a case, if the other joint and several obligor duly asserts a set-off as defense against the joint and several obligor that obtained the discharge, the joint and several obligor may request the obligee to perform the obligation which should have been extinguished due to set-off.


Article 494
(1) In the following cases, a performer may deposit the subject matter of the performance with an official depository for the benefit of the obligee. In such a case, the claim is extinguished when the performer makes the deposit:
(i) the performer tenders the performance, and the obligee refuses to accept it; or
(ii) the obligee is unable to accept the performance.
(2) The preceding paragraph also applies if the performer is unable to ascertain the obligee;provided, however, that this does not apply if the performer is negligent in this respect.
Article 495
(1) The deposit under the provisions of the preceding Article must be made with the official depository having jurisdiction over the place where the relevant obligation is performed.
(2) If there is no specific provision in laws and regulations with respect to the official depository, the court, at the request of the performer, must designate the depository and appoint a custodian of the thing to be deposited.
(3) A person that has effected a deposit pursuant to the provisions of the preceding Article must notify the obligee of the deposit without delay..


Article 492
Upon tendering the performance, the obligor is relieved from any and all responsibilities which may arise from the non-performance of the obligation.
Article 493
The tender of the performance must be made actually consistent with the main purport of the obligation;provided, however, that if the obligee refuses to accept that performance in advance or if any act is required on the part of the obligee with respect to the performance of the obligation, it is sufficient for the obligor to request the acceptance thereof by giving a notice that the tender of the performance has been prepared..


Article 707 (1) If a person that is not an obligor has performed an obligation by mistake and the obligee, acting in good faith, has allowed the instrument to be lost, has damaged the instrument, has waived the security, or has lost the claim by prescription, the person performing the obligation may not demand the return of subject matter of the performance.


Article 481
(1) If a third party obligor of a claim that has been attached performs the obligation to that third party's own obligee, the attaching obligee is entitled to request the third party obligor to perform the obligation de novo to the extent of the damage sustained by the attaching obligee.
(2) The provisions of the preceding paragraph do not preclude the relevant third party obligor from exercising the right to reimbursement from the obligee..


Article 467
(1) The assignment of a claim (including the assignment of a claim that is yet to arise) may not be duly asserted against the applicable obligor or any other third party, unless the assignor gives notice thereof to the obligor or the obligor has consented to the same.
(2) Notice or consent as referred to in the preceding paragraph may not be duly asserted against a third party other than the obligor unless the notice or the consent is made using an instrument bearing a certified date..


Article 706
If an obligor has paid money or delivered anything as performance of an obligation that has not yet fallen due, the obligor may not demand the return of the money paid or thing delivered;provided, however, that if the obligor tendered anything by mistake, the obligee must return the benefit gained as a result..
