HMN-887 — I reformed my wicked, disgusting student by using aphrodisiacs and remote-controlled vibrators. During class and after school, I brought her to orgasms with near-misses, her pussy convulsing and drenched in cum, making her wet and squirting. - Sumire Kuramoto

Homeroom teacher Haneda is troubled by the mischievous and bullying Kuramoto Sumire. Sumire completely ignores his warnings. To punish her, he secretly places a remote-controlled vibrator in Sumire's panties while she sleeps. Every time Sumire misbehaves, he switches on the vibrator, using it to sexually train her.