Ryo spends happy days with her husband who is a year away.But one day, her husband showed me a certain site. "Bakuhana Club".A club where a man called Samejima, the organizer, binds married women who have received a request.Her husband, whose lower body became weak, had a desire for Ryo to be tied up.Ryo, who made up her mind for the sake of her beloved husband, had her beautiful body bound to Samejima in front of her husband.And while she is tied up, Ryo also feels her unknown pleasure, and her body and mind are gradually stolen by Samejima.