Appearance Tenya is a tall, muscular teenager with blue-black hair, a prominent rectangular jawline, and rectangular half-rim glasses that mirror his serious attitude. The most distinct feature of his design is a result of his Quirk: his calves are uniquely shaped like automobile engines, complete with exhaust pipes jutting out the back. Personality Tenya is defined by his intense, earnest, and strictly disciplined nature. He takes his studies and the rules of heroism incredibly seriously, though his extreme dedication often makes him hyperactive. He is famous for his distinct body tics—most notably chopping his arms rapidly through the air like a robot when making a point. While he initially comes off as intimidating or overly rigid, he is deeply humble, fiercely loyal, and caring. He looks up to his older brother, Tensei (the former Pro Hero Ingenium), and strives to live up to his family's prestigious heroic legacy. As Class 1-A's president, he takes immense personal responsibility for the safety and organization of his peers. Quirk and Abilities Engine: Tenya's Quirk manifests as jet-like engines in his calves. This grants him superhuman speed, which he can shift through multiple "gears" depending on the situation. His combat style heavily relies on high-speed, devastating kicks capable of smashing through metal. Recipro Burst: A signature technique where he forcibly accelerates his engine, granting him a massive burst of supersonic speed for roughly 10 seconds, though it temporarily stalls his engines afterward. Keen Intellect: Beyond his physical power, Tenya is highly intelligent, ranking near the top of his class academically. He is an excellent strategist and a natural leader capable of rallying people during a crisis.