Miyu, a female student, has feelings for her homeroom teacher. The teacher, aware of her feelings, pretends to give her advice and takes her to a love hotel after school... and drugs her. She is drowned in pleasure and becomes a swamp. She falls into the hands of a dirty adult and cums. She is tied up and tortured with toys, has an orgasm while still in her uniform, gives a blowjob, and has immoral sex in a school swimsuit.