Nana-chan, who skipped school, is threatened by a strange man and taken to a hotel. Helpless, she cannot resist as he gropes under her skirt, teases her pussy with her student handbook, and forcefully shoves his cock into her mouth. Eventually, he creampie her, brainwashing her in the process. She becomes his personal sex doll, used repeatedly in this state. Her body grows weaker, completely consumed by the man's control. The mixed sensations of pleasure and fear overwhelm her, until she forgets her own will entirely.