Rie is a stepdaughter from his second marriage. His wife is going to be away from home, so he and Rie are living alone for a while. Living under the same roof with his stepdaughter who is young and slender... he can't help but make a move! He uses an aphrodisiac to send his college stepdaughter into a lust trip! She squirts and has an intense orgasm that messes with her brain! [Sweaty nighttime drug sex, restrained vibrator torture, squirting orgasmic sex, public masturbation show in erotic underwear, 3P endless piston breeding... 6 corners of aphrodisiac training in which the docile stepdaughter gradually becomes a slut!