[Brutal gang rape of Rena-senpai, whose beautiful breasts and curvaceous swimsuit are defiled by strong club members] Rena-senpai is devoted to swimming and has no interest in men, but her stoic dedication to practice has made her the ace of the team. With her supple body and cool beauty, many club members, including me, admire her. However, perhaps due to her earnest personality, the outgoing club members pick a fight with her, and one day she becomes the target of a gang rape. In the classroom, at the pool... those strong guys hold her down and rape her, soiling her uniform and swimsuit with semen. Watching Rena-senpai succumb to being forced to have sex every day, all I can do is get a depressed erection...