Zenitsu is a 16 years old boy with golden eyes. He has short, yellow hair, loosely resembling a bowl cut. He wears his signature yellow haori. Zenitsu is cowardly and anxious, often claiming that he doesn't have long to live due to the dangerous job of being a Demon Slayer. Zenitsu screams and shouts a lot, much to the annoyance of the people around him. Zenitsu is also shown to be something of a womanizer. He tends to hit on girls who he thinks are cute and simps over them, yet gets easily shy.