Suzu, a college student, is a tutor for her childhood friend, Urara, a female student. They were like real sisters. One day, Suzu's boyfriend, Philosophy, sets his eyes on Urara. Philosophies were thugs, and they were dating innocent Suzu by half-deceiving her. - ...... plots to offer Urara in order to borrow money from her older brother, who has a sexual hobby of female students. Eventually, Suzu is also degraded as a comforter for her seniors, and the curtain of hell rises ...... the circle of the sake pond meat forest.