Tenya Iida trains as a Pro Hero student at U.A. High School, serving as president of Class 1-A. Hailing from the renowned hero-producing Ida family, he previously attended prestigious Soumei Junior High. His older brother, Tensei Ida, operated as the Turbo Hero Ingenium until severely injured by the Hero Killer Stain; this event leads Tenya to later inherit the Ingenium name. Eight years after the Final War, he graduates, becomes the No. 13 ranked hero, and assumes leadership of his brother's agency, Team Idaten. He possesses a tall, muscular frame, short dark blue hair, a square jaw, and rectangular eyes, sporting glasses. Distinctive engine structures adorn his calves, each featuring six exhaust pipes, central to his Quirk. His hero costume evolves: beginning as a dark blue armored suit designed for minimal wind resistance, it undergoes modifications by Mei Hatsume after significant damage, resulting in retractable helmets and sleeker armor with specialized cooling boots. Post-graduation, his Ingenium costume incorporates a briefcase-storable helmet with dual horns and additional neck braces. Initially stern and rule-bound, Tenya emphasizes discipline and organization, frequently exhibiting chopping arm motions or body twitches. His elite upbringing occasionally causes social misunderstandings or misinterpretations. He deeply admires his brother Tensei; when Stain cripples Tensei, Tenya abandons protocol seeking vengeance. This results in a near-fatal Hosu City confrontation requiring rescue by Izuku Midoriya and Shoto Todoroki. The incident leaves a shoulder scar and a damaged hand, kept unhealed as a reminder. He subsequently rejects revenge-focused heroism, striving to honor Ingenium's legacy. Prone to self-doubt, Tenya often compares himself unfavorably to peers like Izuku or his brother, initially hesitating to adopt the Ingenium name feeling unworthy. Though reluctant to seek emotional support, he gradually learns to rely on friends, joining unauthorized missions to aid classmates. His rigid rule adherence softens over time, exemplified by violating orders during the Paranormal Liberation War. He remains humble, acknowledging mistakes and working to improve flaws like imposing high expectations or holding grudges. His Quirk, Engine, grants superhuman speed via calf engines operating in multiple gears. Early limitations include overheating and temporary stalling after his Ultimate Move, Recipro Burst—a 10-second speed boost. Post-Stain battle, he develops Recipro Extend to extend the high-speed duration. Continuous training enhances his capabilities: he eventually surpasses Gran Torino's speed, achieves Mach 3 velocity transporting Shoto vast distances during the Final War, and stalls Near High-End Nomu alongside top heroes. His combat style blends rapid kicks with strategic acumen, ranking him among Class 1-A's strongest fighters. Academically, he excels, placing second in midterms and demonstrating keen tactical insight. Tenya's arc traces growth from a rigid rule-follower to a principled yet adaptable hero. Key developments include his failed revenge mission against Stain, teaching him teamwork and lawful heroism; his leadership during crisis evacuations; and his eventual acceptance of the Ingenium mantle. In the Final War, he supports Shoto against Dabi, showcasing evolved speed and resolve. His journey concludes leading Team Idaten and upholding his family's heroic legacy.