A girl has gone missing. Kanon, a high school girl cafe employee, was handing out flyers to attract customers as usual when she was suddenly attacked by a man and went missing. The man was fascinated by the girl and said, "I'll make you my doll," so he abducted and imprisoned her, training her to his liking as a doll (girl), becoming a collector of beautiful girls. This is the story of a pathologically insane man's brutal training of a girl. The relentless torture gradually causes the girl's mind to break down.