During recess, a girl in her class is talking about how she came during sex with her college boyfriend. The story is too much for Mitsuha. What does it mean to "come"? Feeling excited, Mitsuha masturbates in the bathroom during lunch break. She passes her childhood friend Takashi in the hallway. Their houses are in the same neighborhood and they've been together since kindergarten. She decides to talk to him and asks, "Do you have plans after school today? Can I come over to your house, Takashi?"