- The uncle of a "perverted artist" who carefully teaches the pleasure of sex to his obedient niece one by one and trains it to a sex slave. In order to be humiliated by such an uncle, today Rina went to her uncle without telling her family. - The forbidden "sexual intercourse" that is allowed only when she is alone with her uncle makes her adolescent niece Mako ache and begins to ask for her uncle's Ji Po. "I'll listen to whatever my uncle says, so please, please give me a quick reward..."