Shoko works as a receptionist at a high-end department store, always maintaining a smile and politely serving even unpleasant customers. Her job demands constant mental focus for long hours, making it extremely stressful. Even after work ends, she struggles to unwind from the day's tension. As her personal way to relieve stress, she engages in sex while still wearing her uniform. Late at night, in the deserted store floors, bondage play becomes her special time for releasing pent-up emotions.