Sayuri, a new bubble bath hostess, works at a high-class bubble bath. She started this job because she felt lonely with her husband. One day, a young man named Yoshino comes to her. Yoshino is a bit inexperienced with women and seems a little nervous. However, despite his awkwardness, his gentle and considerate nature soothes Sayuri. Even though it's just a bubble bath, they express their longing for each other through kisses, enjoying their time together. As time goes by, their relationship gradually grows closer…