An act that a person performs as an agent of the counterparty or as agent of both parties for the same juridical act is deemed to be an act performed by a person without authority to represent; provided, however, that this does not apply to the performance of an obligation or to an act authorized by the principal in advance.
同一の法律行為について、相手方の代理人として、又は当事者双方の代理人としてした行為は、代理権を有しない者がした行為とみなす。ただし、債務の履行及び本人があらかじめ許諾した行為については、この限りでない。
Beyond what is provided for in the main clause of the preceding paragraph, an act for which the interest of the agent conflicts with the interest of the principal is deemed to be an act performed by a person without authority to represent; provided, however, that this does not apply to an act authorized by the principal in advance.
前項本文に規定するもののほか、代理人と本人との利益が相反する行為については、代理権を有しない者がした行為とみなす。ただし、本人があらかじめ許諾した行為については、この限りでない。