Hideyoshi Kinoshita is a student at Fumizuki Academy, known for his androgynous appearance and often mistaken for a girl. Despite this, Hideyoshi is comfortable with his identity and even uses it to his advantage, often participating in both male and female activities. He is part of Class F, the lowest academic ranking class, and is friends with the main protagonist, Akihisa Yoshii. Hideyoshi is also the twin brother of Yuuko Kinoshita, who is in Class A. His role often provides comic relief, but he also showcases loyalty and intelligence.