Pashirare Incha ga Jitsu wa Saikyou Datta Ken

Shizuka, the class representative, is concerned about her classmate Usui-kun, who is regularly targeted by three delinquents called the Three Idiots. While in town, Shizuka encounters some other delinquents and is rescued by the Three Idiots, though they are quickly overpowered. Usui-kun, who had gone to buy drinks, returns and casually intervenes, defeating the delinquents. Shizuka is surprised when he also deals with the Three Idiots, revealing a hidden strength contrary to his quiet demeanor.