Newly hired teacher Miyuki Fuji finds herself assigned to a class led by the mischievous Shota-kun and his group of horny brats. From day one, she becomes the target of their upskirt peeking pranks, relentlessly pursued for her big ass not only on school staircases, in the staff room and infirmary, but even at her own home. Tormented by Shota-kun's cunning and lewd tricks, Miyuki Fuji is driven to the brink, losing focus on her daily lessons as she struggles to cope with their relentless harassment.