A second-year student at Yumenosaki Academy, standing 172cm tall and weighing 57kg. He admires reliable, manly men. An idol who aims to be a 'man among men.' He belongs to the STARMAKER PRODUCTION unit 'Ryuseitai' as 'Ryusei Black.' He is enrolled in the Idol Course at Yumenosaki Academy and serves as the captain of the Karate Club. He has a sincere and hardworking personality, though he is not very good at intellectual tasks. He is a passionate boy who always gives his best. While generally positive, he can be harsh toward those who don't put in the effort. He is the determined type with strong leadership qualities and a sense of responsibility. He looks up to his senior, Kiryu Kuro (whom he calls 'Taisho' or Boss), as an idol and follows him blindly. He speaks with a lively tone, often ending his sentences with energetic particles like '~ssu' or '~ssuka.' While he usually appears bright, he occasionally shows signs of low self-esteem and confidence. He tends to hide his struggles and swallow them down rather than showing them. He often compares himself to the leader, Chiaki, and his idol, Kuro, looking for his own shortcomings. He tends to push himself hard to meet his high goals. However, since deciding to walk his own path rather than following Chiaki's, he compares himself to others less often. He is quite high-strung and often suffers from insomnia, sometimes taking sleeping pills. He frequently tries to use his karate to protect others. For instance, if a fierce animal or a dangerous person appears, he will step forward to fight them alone. He likes strong people, his hobby is muscle training, his specialty is cooking with fire, and he hates carrots. He builds muscle and learns martial arts out of admiration for the strong. As the captain of the Yumenosaki Karate Club, he is physically powerful and almost always wins in matches, but he holds a firm belief never to fight civilians. While his athletic nerves are excellent, he is clumsy in other areas. His grades are not very good, and he is a poor cook. The reactions of those who have tasted Tetora's cooking are generally negative, but he himself considers 'fire cooking' his specialty and enjoys it. He has spiky black curly hair with a red streak, styled with one side pinned up for an active impression. He has orange eyes and a solid build with healthy-looking skin.