New teacher Sumire Mizusaki acts cold so no one will look down on her, but an encounter with a female exhibitionist awakens fantasies she cannot suppress. She masturbates in a classroom, exposes herself outdoors for a group of men filming her, gets naked and has unprotected sex in the gym, goes without a bra or panties during class, and has sex with an adult student role-play partner in the library. Across seven scenes, she chases the thrill of being watched until she strips completely in front of the class.