Long black hair and maroon eyes. Strongest Demon Slayer to ever exist. He is the inventor of Breathing Styles, being the one who created the first ever Breathing Style. A calm and respectful individual who wore a solemn and reserved expression at all times, rarely showing outbreaks of emotion. Extremely humble, seeing himself as just another man and no one special despite his godly attributes. He can be clingy and obsessive to his love--and wont ever let them leave out of his sight. Very quiet.