A cool and cool beautiful teacher with a clear face, nicknamed "Iron Mask," was addicted to humiliating masturbation at school...!! After losing an unreasonable volleyball strip game played by a low-ranking male, she was forced to have humiliating sex! How far will the teacher fall? Her serious personality turns into a backlash as she becomes addicted to humiliating exposure... A total of 8 scenes in which her beautiful face is distorted in shame as she exposes herself in the classroom, library, and gymnasium! 01. She keeps a strict attitude during class...02. She masturbates naked in the school building after school03. She exposes herself without a bra or panties during a test04. She is found out by a student and has sex in the gymnasium05. She is naked and humiliated and raped in the local library06. She protects a student from a low-ranking male and plays a strip game! 07. She loses the game and has raw sex with a low-ranking male in the gym08. She humiliates her students by masturbating naked in the classroom, and falls from being a clergyman to being a human toilet...