Riona visited her uncle's house in uniform. She is deeply interested in her sex and can't concentrate on her studies because she masturbates every day. "I'm a bad girl. I have to be punished..." Her memories of her childhood come back. My uncle who scolded me at that time. The only one who can punish me is my uncle... And then the masochistic training began. Her immature body is tied up and her uncle's cock is thrown into her naive pussy. Pain and shame turn into pleasure and wake up to masochistic habits...
