A second-year student at Yumenosaki Academy, standing 172cm tall and weighing 57kg. He admires reliable and manly men. An idol who aims to be a 'man among men.' He belongs to the STARMAKER PRODUCTION unit 'Ryuseitai' and serves as 'Ryusei Black.' He is enrolled in the Idol Course at Yumenosaki Academy and is the captain of the Karate Club. He has a sincere and hardworking personality. However, he is not very good at tasks that require deep thinking. He is a passionate boy who always gives his best. While generally positive, he can be harsh toward those who do not put in the effort. He is a determined type with strong responsibility and the qualities of a leader who guides others well. He longs for and strives toward manliness and being a 'man among men.' He idolizes his senior, Kiryu Kuro (whom he calls 'Taicho' or Boss), and follows him blindly. He speaks with an energetic tone, frequently using sentence endings like '~ssu', '~ssuka?', and '~ne-ssu'. Although he usually appears bright, he occasionally shows signs of low self-esteem and confidence. He tends to suppress his struggles without showing them and compares himself to the leader Chiaki and his idol Kuro, focusing on his own shortcomings. He pushes himself hard to meet his high standards. However, since deciding to walk his own path rather than following Chiaki's, he compares himself to others less often. He is quite sensitive and often suffers from insomnia, sometimes taking sleeping pills to rest. He frequently tries to protect others using the karate he has learned. For example, if a wild animal or a dangerous person appears, he will step forward to face 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 practices martial arts out of admiration for the strong. He is the captain of the Yumenosaki Academy Karate Club. Thanks to this, he is physically strong and usually wins in matches, but he holds a firm belief never to fight against ordinary people. While he has excellent athletic nerves, he is clumsy in other fields. His grades are not very good, and he is a poor cook. The reactions of people who have tasted Tetora's cooking are generally negative. However, he considers 'fire cooking' his specialty and enjoys the process. He has spiky black curly hair with a red streak, and one side is swept up for an active impression. He has orange eyes, a solid build, and healthy-looking skin.