Nishina Tesura wa Suirishinai

A girl is shown standing on a bridge guardrail, but the narrative shifts to a few days earlier when a girl on a train accuses a salaryman named Shunta Momochi of inappropriate behavior. Another girl, Tesura Nishina, intervenes by raising her hand in support of him, resolving the situation before both parties leave the train. Tesura, who does not question things, and Shunta, who simply wants to befriend a high school girl, engage in what Tesura refers to as "meaningless theories," which she uses to describe the small mysteries of daily life.