Instruct: Given a legal statement, retrieve articles that support it.
Query: 
In the case of concealment of true intention, assuming the other party was unaware of the true intention of the party making the manifestation, and there was no gross negligence regarding that lack of knowledge, that manifestation of intention shall be valid.


Article 93
(1) The validity of a manifestation of intention is not impaired even if the person making it does so while knowing that it does not reflect that person's true intention;provided, however, that if the other party knew or could have known that the manifestation was not the true intention of the person who made it, that manifestation of intention is void.
(2) The nullity of a manifestation of intention under the provisions of the proviso to the preceding paragraph may not be duly asserted against a third party in good faith..


Article 95
(1) A manifestation of intention is voidable if it is based on either of the following mistakes, and the mistake is material in light of the purpose of the juridical act and the common sense in the transaction:
(i) a mistake wherein the person lacks the intention that corresponds to the manifestation of intention; or
(ii) a mistake wherein the person making the manifestation of intention holds an understandings that does not correspond to the truth with regard to the circumstances which the person has taken as the basis for the juridical act.
(2) A manifestation of intention under the provisions of item (ii) of the preceding paragraph may be rescinded only if it has been indicated that the circumstances in question are being taken as the basis for the juridical act.
(3) If a mistake is due to gross negligence on the part of the person making the manifestation of intention, that person may not rescind a manifestation of intention as under paragraph (1), except in the following cases:
(i) if the other party knew, or did not know due to gross negligence, of the mistake on the part of the person making the manifestation of intention; or
(ii) if the other party was under the same mistake as the person making the manifestation of intention.
(4) The rescission of a manifestation of intention under the provisions of paragraph (1) may not be duly asserted against a third party in good faith acting without negligence.
Article 96
(1) A manifestation of intention based on fraud or duress is voidable.
(2) If a third party commits a fraud inducing a first party to make a manifestation of intention to a second party, that manifestation of intention is voidable only if the second party knew or could have known that fact.
(3) The rescission of a manifestation of intention induced by fraud under the provisions of the preceding two paragraphs may not be duly asserted against a third party in good faith acting without negligence..


Article 98-2
Any person may not assert a manifestation of intention against the other party thereto if that other party had no mental capacity or was a minor or an adult ward at the time of receiving it;provided, however, that this does not apply after either of the following persons learns of the manifestation of intention:
(i) the legal representative of the other party; or
(ii) the other party, after that other party's mental capacity has been restored or after that other party has become a person with capacity to act..


Article 96
(1) A manifestation of intention based on fraud or duress is voidable.
(2) If a third party commits a fraud inducing a first party to make a manifestation of intention to a second party, that manifestation of intention is voidable only if the second party knew or could have known that fact.
(3) The rescission of a manifestation of intention induced by fraud under the provisions of the preceding two paragraphs may not be duly asserted against a third party in good faith acting without negligence..


Article 101
(1) If the validity of a manifestation of intention that an agent has made to the other party is to be influenced by the absence of intention; by mistake, fraud, or duress; or by the knowledge of or negligence in not knowing of a particular circumstance; whether or not any such fact was present is decided as it concerns the agent.
(2) If the validity of a manifestation of intention that the other party has made to the agent is to be influenced by the recipient's knowledge of or negligence in not knowing of a particular circumstance, whether or not any such fact was present is decided as it concerns the agent.
(3) If an agent who has been entrusted with performing a specific juridical act performs that act, the principal may not assert that the agent did not know of any particular circumstance of which the principal knew. The same applies to any circumstance of which the principal did not know due to the principal's own negligence.
Article 99
(1) A manifestation of intention that an agent makes indicating that they will be making a manifestation of intention on behalf of the principal within the scope of the agent's authority binds the principal directly.
(2) The provisions of the preceding paragraph apply mutatis mutandis to a manifestation of intention that a third party makes to an agent.
Article 96
(1) A manifestation of intention based on fraud or duress is voidable.
(2) If a third party commits a fraud inducing a first party to make a manifestation of intention to a second party, that manifestation of intention is voidable only if the second party knew or could have known that fact.
(3) The rescission of a manifestation of intention induced by fraud under the provisions of the preceding two paragraphs may not be duly asserted against a third party in good faith acting without negligence..


Article 555
A sale becomes effective when one of the parties promises to transfer certain property rights to the other party and the other party promises to pay the price for this..


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 98-2
Any person may not assert a manifestation of intention against the other party thereto if that other party had no mental capacity or was a minor or an adult ward at the time of receiving it;provided, however, that this does not apply after either of the following persons learns of the manifestation of intention:
(i) the legal representative of the other party; or
(ii) the other party, after that other party's mental capacity has been restored or after that other party has become a person with capacity to act..


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 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 20
(1) After a person with qualified legal capacity who is involved in dealings with another party becomes a person with the legal capacity to act (meaning a person whose legal capacity to act is not subject to restrictions; the same applies hereinafter), the other party to those dealings may fix a period of one month or longer and demand that the person give a definite answer within that period of time as to whether the person will ratify an act that the person may rescind. In such a case, if the person fails to send a definite answer within that period of time, the person is deemed to have ratified that act.
(2) The second sentence of the preceding paragraph also applies if, before the person with qualified legal capacity becomes a person with the legal capacity to act, the other party to dealings involving the person with qualified legal capacity lodges the demand prescribed in the preceding paragraph with the legal representative, curator, or assistant of that person with respect to an act within the scope of their authority, and they fail to send a definite answer within the fixed period of time referred to in that paragraph.
(3) If a person does not send notice within the period of time set forth in the preceding two paragraphs indicating that the person has completed any special formalities that an act requires, the person is deemed to have rescinded that act.
(4) The other party to dealings involving a person with qualified legal capacity may lodge a demand with a person under curatorship or with a person under assistance who is subject to a decision as referred to in Article 17, paragraph (1) to demand that the person get the curator or assistant to ratify an act within the fixed period referred to in paragraph (1). In such a case, if the person under curatorship or person under assistance does not send notice within that period indicating that the person has gotten the curator or assistant to ratify the act in question, the person is deemed to have rescinded that act..


Article 5
(1) A minor must obtain the consent of the minor's legal representative to perform a juridical act;provided, however, that this does not apply to a juridical act for merely acquiring a right or being released from an obligation.
(2) A juridical act in contravention of the provisions of the preceding paragraph is voidable.
(3) Notwithstanding the provisions of paragraph (1), a minor may freely dispose of property that the legal representative has permitted the minor to dispose of for a specified purpose, to an extent that falls within the scope of that purpose. The same applies if the minor disposes of property that the legal representative has permitted the minor to dispose of without specifying a purpose..


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 96
(1) A manifestation of intention based on fraud or duress is voidable.
(2) If a third party commits a fraud inducing a first party to make a manifestation of intention to a second party, that manifestation of intention is voidable only if the second party knew or could have known that fact.
(3) The rescission of a manifestation of intention induced by fraud under the provisions of the preceding two paragraphs may not be duly asserted against a third party in good faith acting without negligence..


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 95
(1) A manifestation of intention is voidable if it is based on either of the following mistakes, and the mistake is material in light of the purpose of the juridical act and the common sense in the transaction:
(i) a mistake wherein the person lacks the intention that corresponds to the manifestation of intention; or
(ii) a mistake wherein the person making the manifestation of intention holds an understandings that does not correspond to the truth with regard to the circumstances which the person has taken as the basis for the juridical act.
(2) A manifestation of intention under the provisions of item (ii) of the preceding paragraph may be rescinded only if it has been indicated that the circumstances in question are being taken as the basis for the juridical act.
(3) If a mistake is due to gross negligence on the part of the person making the manifestation of intention, that person may not rescind a manifestation of intention as under paragraph (1), except in the following cases:
(i) if the other party knew, or did not know due to gross negligence, of the mistake on the part of the person making the manifestation of intention; or
(ii) if the other party was under the same mistake as the person making the manifestation of intention.
(4) The rescission of a manifestation of intention under the provisions of paragraph (1) may not be duly asserted against a third party in good faith acting without negligence..


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 192 A person that commences the possession of movables peacefully and openly by a transactional act acquires the rights that are exercised with respect to the movables immediately if the person possesses it in good faith and without negligence.


Article 96
(1) A manifestation of intention based on fraud or duress is voidable.
(2) If a third party commits a fraud inducing a first party to make a manifestation of intention to a second party, that manifestation of intention is voidable only if the second party knew or could have known that fact.
(3) The rescission of a manifestation of intention induced by fraud under the provisions of the preceding two paragraphs may not be duly asserted against a third party in good faith acting without negligence..


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 474
(1) A third party may also perform an obligation.
(2) A third party that has no legitimate interest in performing an obligation may not perform the obligation against the will of the obligor;provided, however, that this does not apply if the obligee did not know that the performance is against the will of the obligor.
(3) The third party prescribed in the preceding paragraph may not perform the obligation against the will of the obligee;provided, however, that this does not apply if the third party performs the obligation as requested by the obligor, and the obligee knew this.
(4) The provisions of the preceding three paragraphs do not apply if the nature of an obligation does not permit the performance by a third party or if a party manifests the intention to prohibit or restrict the performance by a third party..


Article 179
(1) If ownership and another real right on the same thing are acquired by the same person, the other real right is extinguished;provided, however, that this does not apply if that thing or the other real right is the object of the right of a third party.
(2) If a real right other than ownership and another right for which that real right is the object are acquired by the same person, the other right is extinguished.In this case, the provisions of the proviso to the preceding paragraph apply mutatis mutandis.
(3) The provisions of the preceding two paragraphs do not apply to possessory rights..


Article 32
(1) Having received proof that a missing person is alive or that a missing person died at a time different from the time set forth in the preceding Article, the family court, at the request of the missing person or an interested person, must rescind the declaration of that person's disappearance.In this case, the rescission does not affect the validity of any act performed in good faith after the declaration of disappearance but before the rescission thereof.
(2) A person who has acquired property due to a declaration of disappearance loses the rights in question due to its rescission;provided, however, that the person has the obligation to return that property only to the extent currently enriched..


Article 526
If an offeror dies, comes to be in a constant state wherein the offeror lacks mental capacity, or becomes subject to restrictions on legal capacity to act after issuing notice of the offer, and the offeror has manifested the intention not to make the offer effective should any of these facts occur, or the other party comes to know that any of these facts has occurred before issuing a notice of acceptance, that offer is not effective..


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 96
(1) A manifestation of intention based on fraud or duress is voidable.
(2) If a third party commits a fraud inducing a first party to make a manifestation of intention to a second party, that manifestation of intention is voidable only if the second party knew or could have known that fact.
(3) The rescission of a manifestation of intention induced by fraud under the provisions of the preceding two paragraphs may not be duly asserted against a third party in good faith acting without negligence..
