Shota, who was separated from his mother at a young age, had his now-deceased father remarry with Claire, who was 20 years older. Shota got along well with Claire, who was close in age to him, and eventually came to love her as a woman. Meanwhile, Claire was torn about a colleague's proposal to date her. She decided to invite Shota to a hot spring to tell him about it. Shota, who was invited, also thought he would use this opportunity to express his feelings.
