One day, Mai visited her uncle's house. Mai, who is in the middle of puberty, is interested in a man's body and, and she masturbates every day and cannot concentrate on studying. "I'm a bad boy, I need to be punished..." My uncle scolded me back then. My uncle is the only one who will punish me ... And masochistic training that began. - Her immature buttocks are beaten so much that they turn bright red, her breasts that have begun to swell are tied up, and Maiha wakes up to the pleasure of de M.