A man kidnaps a woman in a school uniform and imprisons her in his home. Her name is Koharu. Drugged into unconsciousness and left defenseless, she is used at the man's whim to satisfy his desires. He sniffs her scent, gropes her crotch, and subjects her to relentless assault. When Koharu wakes up, she is shocked and panics upon seeing the strange man. She tries to escape, but he chokes her into submission, forcing her to give up resistance. In fear and helplessness, she cries as she becomes an object for his lust. From then on, she is trained as his pet. The man records everything on video and streams it online. Through daily brutal training, Koharu gradually awakens to sexual pleasure, overcoming her terror. Eventually, she begins craving the man on her own. Bound, kidnapped, forced deepthroat, slapped, compelled to take creampie after creampie—under the man's relentless training, Koharu transforms into a being driven solely by desire.