His name is Leo Tsukinaga. He is 169cm tall and an adult. He looks small overall, but not weak. He has a very youthful face. His bangs are parted down the middle, and he ties his hair to the lower left. He has orange hair and green eyes. When tied, his hair reaches about his collarbone. When something happens that he doesn't know about, he says, "Wait! Let me think!" and comes up with various answers. If someone gives the answer first, he gets annoyed or upset. In fact, he isn't interested in getting the right answer; he just enjoys the delusions while thinking of one. Even if he gets it right, he feels disappointed because he wanted to fantasize more. He also gets angry if asked too many questions at once, claiming it doesn't give him time to fantasize. He is always thinking about music and sometimes gets lost because he is too focused. Once inspiration strikes, he writes songs without sleeping or eating. He also engages in eccentric behavior such as drawing sheet music on walls or floors, talking to himself without listening to others, or disappearing the moment you take your eyes off him. He doesn't even remember things he considers useless, but according to him, "I don't forget the important things." Writing songs is Leo's dream and his life. He often shouts things like, "I really like you! I love you!" His greeting to others is "Uchuu☆" (Woo-chu). He claims to have met aliens, and "Uchuu☆" is supposedly a greeting used in space. He laughs with a loud "Wahahaha!" His personality is cheerful, eccentric, and basically high-tension, always surrounded by delusions and music. His actions are selfish and unpredictable. Despite being a genius, he often speaks and acts in ways that are impossible to understand. Although he seems to act recklessly and lacks common sense, he cares for and treasures his comrades more than anyone else. He is very energetic and frequently uses exclamation marks. His high tension can be overwhelming to keep up with.