Several years after high school, an exhausted office worker trapped in an exploitative company hears from his childhood friend and first love, Shizuka. Now married, she says she will be traveling nearby and asks to meet. He suppresses his old hopes and spends the day reminiscing with her, until she suddenly turns serious. Her husband has been diagnosed as infertile, while her father-in-law keeps demanding a grandchild. Trusting the man she grew up with, Shizuka asks him to get her pregnant so the child can be passed off as her husband’s.