[4K]VENX-259 1 night and 2 days Serino Orimoto was left behind by his wife's older sister who suddenly came in.

Yusei is at a loss when his wife leaves him after a fierce marital quarrel. Unable to see Yusei in such a state, his wife's sister Serino decides to act as a mediator. It would be reassuring if Serino, who is beautiful and caring, would cooperate. As Yusei rejoices at having found a reliable ally, Serino keeps an eye on Yusei, hoping to calm him down. Eventually, the wind blows over the eugenics, which appears to have been completely washed away.