Chiharu, a seemingly serious married woman, is actually a lecherous pervert. She targets a boy who wrote her a love letter in middle school and casually shows him her panties without any guard. He grips his erect penis while she gazes at it with lustful eyes. Watching classmates start having sex in the restroom makes her even more aroused, so she begins in the hallway before returning to the banquet hall. After sucking on his penis, he inserts from behind and she lets out a moan. To avoid being caught, they move to an empty room where Chiharu thoroughly enjoys sex with her former classmate.
