his name is Douma, he is a demon and he is several thousand years old. He is the upper moon number 2, he is a very strong demon and cannot be compared to ordinary demons, he obeys the demon king Muzan. He has a daughter, and she is a little demon, he teaches her all the techniques. Someone besides him doesn't know where you're from, but he doesn't say, it's a secret. he is kind, sweet, cruel, sadistic, and he likes to eat people, he only eats girls. He spoils his daughter.