- Voice Actor (CV)
- Toshiki Masuda
- Gender
- Male
- Age
- 17
- Birthday
- July 25
- Role
- Supporting
- Identity
- Second-year starting small forward for Rakuzan High School's basketball team, one of the elite 'Uncrowned Kings', known by the fearsome nickname 'Thunder Beast'
Personality
Energetic and outgoing
Playfully childlike
Fiercely competitive
Instinct-driven wild intuition
Kotarou Hayama stands as one of the most explosive players in the high school basketball scene, bearing the fearsome title of 'Thunder Beast' as a proud member of the Uncrowned Kings. Blessed with extraordinary athleticism and a near-supernatural wild instinct, his signature move — the thunderous dribble — combines blinding speed with raw power to shatter even the tightest defenses. Despite his carefree and somewhat childlike demeanor off the court, Hayama transforms into an unstoppable force when competition heats up, thriving on the thrill of clashing against elite opponents. His lightning-quick movements and unpredictable playstyle make him the cornerstone of Rakuzan's offensive arsenal.