"Doujin Circle U-Dash" x "FunCity" collaboration series! A female teacher nicknamed "Iron Mask" by her students for her diligence, was inspired by an exhibitionist madwoman she met by chance, and became addicted to wandering around the school naked, and became a prisoner of shame and pleasure. Including all 9 scenes that make your body ache! 01. Ittetsu serious "Iron Mask" and "Crazy Lady Exposed" 02. Masturbation conflict in Sumire's room 03. Naked masturbation on the stairs of the school building 04. Provocative miniskirt panties during class! 05. Explicit nude photography on the rooftop 06. Posting selfies in the classroom... 07. Students discover SEX in the physical education warehouse 08. Bareback in the shameful volleyball match 09. Restrain the classroom covered in semen Ring!