TV-Series
Description
Kagetora Aida is the father of Riko Aida, the coach of the Seirin High basketball team, and is a central supporting figure in their journey. He is a 38-year-old man with a stocky build, standing 181cm tall and weighing 75kg. He has short, messy light brown hair, darker eyebrows, and a trimmed beard. He was formerly a small forward for the Japanese national basketball team, where he wore the number 7 jersey. During his playing career, his signature move was the double clutch. After retiring from professional play, he transitioned into a career as a sports trainer and now owns and operates the Aida Sports Gym.

Kagetora possesses a boisterous, over-the-top, and highly eccentric personality. He is most famously an utterly devoted and overprotective father, often to a comical and extreme degree. He dotes on his daughter Riko, frequently embarasses her in public, and is fiercely protective of her, going so far as to threaten the Seirin players with a gun when he suspects one of them might have peeked at her in the bath. He has a habit of giving everyone he meets, from players to rival coaches, playful and often silly nicknames, such as calling Junpei Hyuga Glasses Nut, Shun Izuki Mr. Cuticle, or Mr. Straight-Haired Guy, and Teppei Kiyoshi an idiot or Ditzy Boy. Despite his comical demeanor, he is a deeply insightful and skilled mentor who takes his role as a trainer seriously, believing that individual skill development is the true foundation of effective teamwork. His personal motto is that kindness is not just for others, or that treating others well also means treating yourself well.

His primary motivation is the well-being and success of his daughter, Riko, but he also harbors a deep, unextinguished passion for basketball. He supports Seirin High by allowing them to use his gym for practice and agrees to become their temporary, unofficial trainer during a critical winter training camp at Rikos request. In this role, he is instrumental in elevating the teams level before the Winter Cup. He uses his expertise to teach individual players new techniques to overcome their specific weaknesses; for instance, he teaches Junpei Hyuga the Barrier Jumper, Teppei Kiyoshi the Vice Claw, and Shun Izuki the Eagle Spear. He also provides crucial strategic advice to Riko, famously suggesting she bench Tetsuya Kuroko to force Taiga Kagami to unlock more of his latent potential.

Kagetora is well-connected within the world of the series, having been teammates and friends with many of the current coaches of the Generation of Miracles schools. He maintains friendly, if informal, relationships with coaches like Masaaki Nakatani of Shutoku, whom he calls Ma-Boy, and Katsunori Harasawa of Too, whom he calls Katchan. Beyond Seirin, his role expands significantly in the EXTRA GAME storyline. After the American streetball team Jabberwock humiliates a Japanese all-star team and insults the countrys basketball, an enraged Kagetora challenges them to a revenge match, vowing to disembowel himself if his team loses. He then takes on the role of head coach for Vorpal Swords, a dream team he assembles consisting of the Generation of Miracles, Kuroko, and Kagami, leading them to victory.

His most notable ability is Scan, an advanced analytical skill he honed over years as a trainer. This ability allows him to assess an athlete's physical data, such as muscle mass, flexibility, and condition, with just a look, and it is implied to be even more refined than his daughters. Furthermore, despite his age, his own physical ability, technique, stamina, and mental strength remain at a very high level, a testament to his past as a national team player. He is also rumored to have a special skill for car drifting, which is listed among his personal hobbies alongside spending time with his daughter.
Cast