Though she strongly feels her duty as a wife, she can't help but feel guilty for lying to her husband about going on a hot spring trip with friends. Daily life has left her feeling lonely, and her desire to rediscover and refine herself grows stronger. The moment they arrive at their destination, they hold hands and gaze deeply into each other's eyes. Then, they share their first kiss. Though this act has been repeated many times before, today's encounter is different—her partner is not her husband, but a man she has just met.