Makoto, a fourth-year student at a prestigious university, was happily dating yuki, who participated in the same circle. One day, yuki showed makoto her tattooed body and said, "i'm not the girl you think i am..." although surprised, makoto accepted yuki and confessed his love for her. later, when yuki disappeared, makoto went to yuki's house worried. there, he found the men who had once carved tattoos into yuki's body and used her as a sex slave...