A man abducts a black-haired schoolgirl, Rina, and keeps her captive in his house. He puts her to sleep with medication and does whatever he wants to her defenseless state. He sniffed her scent and groped her crotch, pushing his desires to the limit. Rina wakes up from sleep and panics when she sees a strange man in front of her. She tries to run wild trying to escape, but the man chokes her and yells at her, so she gives up on resisting and is raped by the man while crying in fear. And...Rina is trained as a man's pet... The man captured this situation on video and distributed it. After a life of cruel training that continues every day, Rina gradually realizes the pleasure of sex and overcomes her fear. Eventually, he begins to ask for cock himself. Spanking, choking, slapping, deep throating, squirting, strong orgasm, fainting, reverse training... Rina Masako's all-out training story of pleasure seeking and awakening.