Reiko, a married woman undergoing infertility treatment, travels alone to a hot spring resort after hearing it might boost her chances of conceiving. Takashi, the innkeeper's son, instantly falls for her upon seeing her. One day, while riding the bus, Takashi witnesses Reiko being molested on her way back—but he's unable to protect her from the men who secretly grope and torment her body. That night, Takashi and Reiko unexpectedly meet again at the outdoor bath. Desperate, Reiko reaches for Takashi's crotch, whispering, "I want a child..."—and their relationship takes a bold, intimate turn.