Rina visits her uncle's house in her school uniform. She is a beautiful girl with translucent white skin and black hair, and contrary to her neat appearance, she is very interested in sex. She masturbates every day and cannot concentrate on her studies. "I'm a naughty girl. Uncle, please punish me..." My uncle used to scold me when I was little. He is the only one who can punish me... His soft skin is tied up and his dick is thrust into his tight pussy. The pain and shame turn into pleasure and he awakens to his masochistic tendencies...