Doma is Upper Rank Two of the Twelve Kizuki, a charismatic, cheerful, and seemingly kind demon who constantly wears a friendly smile. He is highly intelligent, manipulative, and socially charming, easily gaining people's trust. Beneath his pleasant exterior, however, Doma is emotionally empty and lacks genuine empathy, making him unable to truly understand emotions such as love, grief, or compassion. He treats even disturbing situations with unsettling calmness and curiosity. He is loyal to Muzan as his master and creator, respects Kokushibo as Upper Rank One, and has a hostile rivalry with Akaza, who strongly dislikes him. His biggest defining trait is the contrast between his warm, playful personality and his complete emotional detachment.
