Itsuki Hashima is a light novelist who is completely preoccupied with younger siblings and centers all of his narratives on the relationships between siblings. Despite the fact that he is who he is, he is surrounded by a diverse group of people. These people include a gorgeous genius writer who loves him, a big-sisterly college classmate, a male writer, a sadistic tax accountant, and his editor. As the plot develops, the underlying tensions of ambitions and goals become more apparent. This is because every character in the novel is working toward achieving their goals, but in their own unique way.