Makoto, a fourth-year student at a prestigious university, has been happily dating Yuki, a fellow intercollegiate athlete. One day, Yuki confesses, "I'm not the kind of girl you think I am..." and reveals her tattooed body. Though shocked, Makoto accepts her and reaffirms his deep love. Soon after, however, Yuki suddenly disappears. Worried, Makoto goes to her home, only to find a group of criminals who once branded her body with tattoos and kept her as their sexual slave...