Himari and Yuzuru, who live in neighboring houses, have been spending their days like siblings due to each other's family circumstances. Yuzuru has liked Himari as a woman but has never been able to confess his feelings. One day, Himari finally decides to get married. If he doesn't express his feelings now, he might never be able to. Thinking this, Yuzuru gathers the courage to confess to Himari but is rejected. Sometime later, Himari visits a dejected Yuzuru and says, "Let's have sex?"
