START-419 — A Nagging High School Teacher Who Missed Her Chance To Get Married Is A Total Pervert Whose Hobby Is Exposing Herself In Class. When Her Students Discover Her Hobby, She Is F** To Mate With Them Like Monkeys, And Is Reminded Of Her Instincts As A Female. Yui Mahiro

Ms. Yui is a tomboyish teacher who always wears tracksuits and nags at the dumb male students. Her students laugh at her behind her back, saying things like, "She definitely doesn't have a boyfriend," "She's probably a virgin," and "She's completely missed her chance to get married." However, her true nature is that she has a stronger sex drive than most, and she is a total pervert who enjoys exposing herself and masturbating in the school during class or after school when no one is around.