A story depicting the emotions and desires of a married woman swaying with the waves of a hot spring. Dissatisfied with her cold relationship and lackluster sex life with her husband, she awakens to a new encounter during a trip. Prompted by her friend's words, she begs a man to let her experience intense pleasure. During passionate sex, she reaches climax for the first time in her life. Fueled by this experience, she returns to the man with growing desire, mounting him eagerly and riding him with fervor. Her passion and longing mark the beginning of a new love affair.