IPZZ-697 Yume Nishimiya, a cheeky schoolgirl, has her sensitive nipples repeatedly played with by her hated middle-aged teacher, who is so fondled by them that she experiences nipple orgasms so intense she loses control.

It's seriously gross, so don't touch me! Before summer vacation, Yume is summoned by her homeroom teacher, Saito, a notorious masochist. He tells her that her attendance and grades mean she'll be in danger of not graduating if things continue as they are. Confused, Saito suggests intensive extra classes over the summer... Threatened by a disgusting middle-aged teacher with a mother complex, she's forced to go to school without a bra, a humiliating experience. Take your time...