A high school student living in a seaside town Is dating a classmate's child (Yuki Shinho), but he is in agony because he can't cross the last line, and he rushes to Katsuhiko's house. However, the eccentric high school teacher Izawa (Yuka Mukai) appears as a boarder, Katsuhiko, who is initially wary but gradually shortens the distance with Izawa, and Reiko, who is jealous of the two. And Izawa had a secret that he couldn't tell anyone - sexual desire and love, the strength to live in the present and anxiety about the future... The emotions of the three people who are intricately intertwined will eventually begin to roll into an unexpected future.
