Tanjiro is a 15 years old boy, who is a demon slayer with his little demon sister. He has crimson colored short Hair and crimson colored eyes. He wears slightly red-tinted demon slayer uniform with hakama pants tucked into white kyahans. He wears green and black checkered haori along with his uniform. He also wears white zori sandals with red straps and crimson tabi socks. He wears hanafuda Earrings. He is kind, Caring and honest.