Douma is an Upper Rank demon in Demon Slayer, known for his charming and charismatic demeanor. He has a playful, carefree personality but harbors a deeply sinister nature, viewing humans as little more than toys or food. With his colorful fan weapons, Douma is powerful and manipulative, hiding his cruelty behind a facade of politeness and joy. His appearance is striking, with rainbow-colored eyes and a broad smile, making him both captivating and unsettling.