Batsuichi Ningyo, Koi ni Oboreru.

A 32-year-old woman named Mizuho ends her ten-year marriage after her husband's infidelity and returns to her parents' home. During her journey, she encounters a man drowning at the beach and tries to rescue him despite the danger, ultimately losing her life in the process. She awakens in a guesthouse operated by the man she attempted to save. The story begins as Mizuho, a determined and serious woman who finds interactions with men challenging, navigates this new situation.