Chapter III Benevolent Intervention in Another's Affairs
第三章 事務管理
A person that has begun to manage affairs for another person without being obligated to do so (in this Chapter referred to as a "manager" below) must manage that affairs, in accordance with the nature of the affairs, in the way that best suits the interests of the principal (referred to as "benevolent intervention in another's affairs" below).
義務なく他人のために事務の管理を始めた者（以下この章において「管理者」という。）は、その事務の性質に従い、最も本人の利益に適合する方法によって、その事務の管理（以下「事務管理」という。）をしなければならない。
A manager must engage in benevolent intervention in another's affairs in accordance with the intentions of the principal if the manager knows, or is able to conjecture that intention.
If a manager engages in benevolent intervention in another's affairs in order to allow a principal to escape imminent danger to the principal's person, reputation, or property, the manager is not liable to compensate for damage resulting from this unless the manager has acted in bad faith or with gross negligence.
Article 699Obligation of Managers to Give Notice
第六百九十九条（管理者の通知義務）
A manager must continue the benevolent intervention in another's affairs until the principal or their heir or legal representative is able to undertake it; provided, however, that this does not apply if it is evident that the continuation of the benevolent intervention in another's affairs is contrary to the intention of the principal, or is disadvantageous to the principal.
The provisions of Article 645 through Article 647 apply mutatis mutandis to the benevolent intervention in another's affairs.
第六百四十五条から第六百四十七条までの規定は、事務管理について準用する。
Article 702Managers' Claims for Reimbursement of Costs
第七百二条（管理者による費用の償還請求等）
If a manager has incurred beneficial expenses for a principal, the manager may claim reimbursement of those costs from the principal.
管理者は、本人のために有益な費用を支出したときは、本人に対し、その償還を請求することができる。
The provisions of Article 650, paragraph (2) apply mutatis mutandis if a manager has incurred beneficial obligations on behalf of the principal.
If a manager has engaged in the benevolent intervention in another's affairs against the intention of the principal, the provisions of the preceding two paragraphs apply, solely to the extent currently enriched.