GS-2018 Memoir of a Brother's Revenge on His Married Twin Sister

Koichi Takahashi carries out a client's request for sex with a close relative, and the whole incest scheme is filmed. The brother, holding a grudge against his younger sister who has built a happy family, colludes with a director to test her through her son's soccer prospects. She reluctantly agrees to entertain the director, then is blindfolded and served by her brother in disguise, who reveals himself and takes revenge. After the director intervenes, the two end up in sex, with the sister moving on top and saying it feels good. The 2021 release runs 122 minutes.