Kasumi, who has been working at a junior high school in Setagaya Ward since graduating from university, finds that being a teacher is busier than she imagined, leaving her with few opportunities to meet people. This daily routine gradually leads to stress, and for a young woman, this stress naturally translates to pent-up sexual desire. Having moved to Tokyo for higher education, she relied on a scholarship, but her teaching job alone wasn't enough to repay it. To cope with the debt, she started taking on side jobs at girls' bars and hostess clubs. One day, she stumbled upon a sugar daddy ad on social media and, out of curiosity, agreed to meet the man. The experienced older man she met there successfully lured her back to his home, where he thoroughly enjoyed every inch of Kasumi's body, satisfying her long-held sexual desires…