In a provincial city, high school student Sakuma Kamiki has grown apart from his once-close childhood friend, Ushio Tsukinoki, who is stunningly attractive, excels in academics and sports, and is incredibly popular. Sakuma struggles with past traumas and feelings of inferiority towards Ushio. Despite this, Sakuma develops a romantic interest in his classmate Natsuki Hoshihara, bonding over a shared love for novels. However, he is shocked when he sees Ushio, usually the epitome of perfection, dressed in a sailor uniform and sobbing uncontrollably in a park.