Instruct: Given a statement, retrieve legal articles that support it.
Query: 
Even if a mandator died, an heir of the mandator may not assert termination of mandate by death of the mandator against a mandatary, when the mandatary was not notified of or did not know of the same.


Article 655
The grounds of termination of mandate may not be asserted against the other party unless the other party was notified of or knew of the same.
Article 653
A mandate terminates when:
(i) the mandator or mandatary dies;
(ii) the mandator or mandatary is subject to an order commencing bankruptcy proceeding;
(iii) the mandatary is subject to a decision for the commencement of guardianship..


Article 648
(1) In the absence of any special agreements, the mandatary may not claim remuneration from the mandator.
(2) If a mandatary is to receive remuneration, the mandatary may not claim this until after having performed the mandated business;provided, however, that if the remuneration is specified with reference to period, the provisions of Article 624, paragraph (2) apply mutatis mutandis.
(3) In the following cases, the mandatary may demand remuneration in proportion to the performance already completed:
(i) if the mandatary is no longer able to perform the mandated business due to any grounds not attributable to the mandator; or
(ii) if the mandate is terminated during the course of performance..


Article 646
(1) A mandatary must deliver to the mandator monies and other things received during the course of administering the mandated business. The same applies to fruits the mandatary has reaped.
(2) A mandatary must transfer to the mandator rights that the mandatary has acquired in the mandatary's own name on behalf of the mandator..


Article 644
A mandatary bears a duty to administer the mandated business with the due care of a prudent manager in compliance with the main purport of the mandate..


Article 645
A mandatary must, if so requested by the mandator, report the current status of the administration of the mandated business at any time, and must report the process and results without delay upon termination of the mandate..


Article 344
The creation of a pledge becomes effective through delivery of the subject matter of the pledge to the obligee.
Article 345
A pledgee may not allow a pledgor to possess the thing pledged on behalf of the pledgee..


Article 651
(1) A mandate may be cancelled by either party at any time.
(2) In the following cases, a party that has cancelled a mandate pursuant to the provisions of the preceding paragraph must compensate for damage suffered by the other party;provided, however, that this does not apply if there was a compelling reason for the cancellation:
(i) if the party cancels the mandate at a time that is detrimental to the other party; or
(ii) if the mandator cancels the mandate for which the purpose includes the interests for the mandatary (excluding the profit to be obtained exclusively by receiving remuneration)..


Article 113
(1) A contract concluded by a person who acts as the agent of another person but has no authority to represent does not bind the principal unless the principal ratifies it.
(2) The ratification or refusal to ratify may not be duly asserted against the counterparty unless it is made to that counterparty;provided, however, that this does not apply if the counterparty has come to know the ratification or refusal to ratify..


Article 617
(1) If the parties do not specify the term of a lease, either party may give a notice of termination at any time. In such cases, a lease as set forth in one of the following items terminates when the term prescribed in that item has passed after the day of the notice of termination:
(i)
(ii)
(iii)
(2) With respect to leases of land with harvest seasons, the notice of termination must be given after the end of that season and before the next start of cultivation.
Article 591
(1) If the parties do not define the time for return of borrowed things, the lender may demand their return, specifying a reasonable period of time.
(2) The borrower may return the borrowed thing at any time, irrespective of whether the parties have defined the time of return of the thing.
(3) If the parties defined the time of return of the borrowed thing, and the lender sustains any damage because the borrower returns the thing prior to the time of return, the lender may claim compensation therefor from the borrower..


Article 697
(1) A person that has begun to manage a business for another person without being obligated to do so (hereinafter in this Chapter referred to as a "manager") must manage that business, in accordance with the nature of the business, in the way that best suits the interests of the principal (hereinafter referred to as "benevolent intervention in another's business").
(2) A manager must engage in benevolent intervention in another's business in accordance with the intentions of the principal if the manager knows, or is able to conjecture that intention.
Article 701
The provisions of Article 645
through Article 647
apply mutatis mutandis to the benevolent intervention in another's business.
Article 648
(1) In the absence of any special agreements, the mandatary may not claim remuneration from the mandator.
(2) If a mandatary is to receive remuneration, the mandatary may not claim this until after having performed the mandated business;provided, however, that if the remuneration is specified with reference to period, the provisions of Article 624, paragraph (2) apply mutatis mutandis.
(3) In the following cases, the mandatary may demand remuneration in proportion to the performance already completed:
(i) if the mandatary is no longer able to perform the mandated business due to any grounds not attributable to the mandator; or
(ii) if the mandate is terminated during the course of performance..


Article 120
(1) An act that is voidable on the grounds of the qualified legal capacity to act of the person who did the act may be rescinded only by the person with qualified legal capacity (in the case of an act performed by the person as a legal representative of another person with limited capacity, including that other person with limited capacity), or an agent or successor thereof, or a person who has the authority to give consent thereto.
(2) An act that is voidable on the grounds of a mistake, fraud or duress may be rescinded only by the person who made the defective manifestation of intention, or an agent or successor thereof..


Article 520
If a claim and obligation becomes vested in the same person, such claim is extinguished;provided, however, that this does not apply if such a claim is the subject matter of the right of a third party..


Article 637
(1) In the case prescribed in the main clause of the preceding Article, if the party ordering work fails to notify the contractor of the non-conformity to the terms of the contract within one year from the time when the party becomes aware of it, the party ordering work may not demand cure of the non-conformity of performance, demand a reduction of the remuneration, claim compensation for loss or damage, or cancel the contract.
(2) The provisions of the preceding paragraph do not apply if the contractor knew or did not know due to gross negligence the non-conformity referred to in that paragraph at the time when the contractor delivers the subject matter of work (in the case of the subject matter of work that is not required to be delivered, when the work is finished)..


Article 509 The obligor of either of the following obligations may not duly assert a set-off against the obligee; provided, however, that this does not apply if the obligee acquires a claim corresponding to the relevant obligation from another person:
(i) an obligation for compensation for loss or damage based on a tort committed in bad faith; or
(ii) an obligation for compensation for loss or damage for death or injury to person (excluding the one set forth in the preceding item).


Article 449
If a guarantor that guarantees an obligation which may be voidable due to the principal obligor's limited capacity to act, is aware, at the time of entering into a guarantee contract, of the cause for its voidability, that guarantor is presumed to have assumed an independent obligation of the same subject matter in the event of non-performance by the principal obligor or rescission of the obligation..


Article 97
(1) A manifestation of intention becomes effective at the time notice thereof reaches the other party.
(2) If the other party prevents notice of a manifestation of intention from reaching them without a legitimate reason, the notice is deemed to have reached that party at the time it would have normally reached them.
(3) The effect of a manifestation of intention is not impaired even if the person making it dies, loses mental capacity, or becomes subject to restrictions on their legal capacity to act after having sent the notice..


Article 701
The provisions of Article 645
through Article 647
apply mutatis mutandis to the benevolent intervention in another's business.
Article 645
A mandatary must, if so requested by the mandator, report the current status of the administration of the mandated business at any time, and must report the process and results without delay upon termination of the mandate..


Article 547
If no period of time is specified for the exercise of the right to cancel, the other party may issue a notice of demand to the holder of the right to cancel, specifying a reasonable period of time, to the effect that the holder of the right to cancel is to give a definite answer as to whether the holder will cancel or not within that period of time.In this case, if no notice of cancellation is received within that period, the right to cancel is extinguished..


Article 552
A gift that is to be delivered periodically ceases to be effective on the death of the donor or the donee..


Article 113
(1) A contract concluded by a person who acts as the agent of another person but has no authority to represent does not bind the principal unless the principal ratifies it.
(2) The ratification or refusal to ratify may not be duly asserted against the counterparty unless it is made to that counterparty;provided, however, that this does not apply if the counterparty has come to know the ratification or refusal to ratify..


Article 520
If a claim and obligation becomes vested in the same person, such claim is extinguished;provided, however, that this does not apply if such a claim is the subject matter of the right of a third party..


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 115
A counterparty may rescind a contract that a person without the authority to represent has concluded until the principal ratifies it;provided, however, that this does not apply if the counterparty knew at the time of the conclusion of the contract that the agent had no authority to represent..


Article 457
(1) The postponement of expiry of prescription period and the renewal of prescription period due to grounds such as a request for performance in relation to the principal obligor are also effective in relation to the guarantor.
(2) A guarantor may assert against the obligee a defense that can be raised by the principal obligor.
(3) If the principal obligor has a right to set-off, right to rescind or right to cancel against the obligee, the guarantor may refuse to perform the obligation to the obligee to the extent that the principal obligor should have been released from the obligation by exercising these rights..


Article 705
A person that has paid money or delivered anything as performance of an obligation may not demand the return of the money paid or thing delivered if the person knew, at the time, that the obligation did not exist..
