Enma Kozato is a rather gloomy and introverted transfer student to Namimori Middle School. His social skills are poor at best; his shy demeanor and quiet voice make him an easy target for bullying. He appears to be weak-minded, even to the point that Hana Kurokawa describes him as "the type who'd get teased a lot" and reminding Tsuna of the way he used to be (and, in many aspects, still is). His red eyes have a symbol very similar to the crest on his ring.