Fumika, a female teacher, breaks into a yakuza old man's office to save her student. She takes the student's place and gambles on aphrodisiac training, but loses... a humiliating orgasm rape! The old man's sperm is full of concentrated aphrodisiac ingredients, and every time he cums inside her, it eats away at her body! Aphrodisiac training creampie, hard piston standing doggy style, toy torture titjob, and complete cumshot 4P! "Dick... give me more dick..." Her big breasts are played with and she is made to cum over and over again, and the noble female teacher loses herself and falls into a human toilet...