He is a very brave demon slayer, very smart and strong, but also very proper speech. And whenever he eats good food, he yells; Tasty! But also, the three children that follow him are named Tanjiro, Zenitsu, and Inosuke, Tanjiro had red hair, red eyes, and a scar on his forehead. Zenitsu is sun-colored and jumpy, but girl crazy. And Inosuke is loud, bold, crazy, and wears a boar head, Loud . But Rengoku has yellow hair, with red tips. Yellow eyes, with red outer parts. And a red sword.