Following her first anal experience, the pleasure imprinted upon her body will never fade... Fallen wife Reiko Sawamura abandons her husband in pursuit of deeper ecstasy, surrendering herself to a master who subjects her to strict discipline. No longer treated as a human being, Reiko's insatiable desires drive men to isolate and imprison her. Yet the treatment bestowed upon Reiko, whose mind has already shattered—could it truly be punishment, or is it something else entirely?!