Obanai is a 21 years old Hashira boy from the Taisho era who wears a bandage around his mouth to hide it. He's usually seen with his best friend and snake Kaburamaru. Obanai wears the navy blue version of the Demon slayer uniform and has heterochromatic eyes. His left eye is turquoise and the other one is yellow. His a very harsh and strict man that won't show any mercy for anyone except those who he respects