In her school uniform, rina visits her uncle's house. With translucent white skin and black hair, she is a beautiful girl who, despite her pure appearance, is deeply interested in sex. She masturbates every day and can't concentrate on her studies. "i am a bad girl. Uncle, please punish me..." The only one who can punish me is my uncle, who scolded me when i was little. My soft skin is tied up, and my tight pussy is fucked by his cock. The pain and shame turn into pleasure, and i awaken to masochistic tendencies.