What Should I Do If My Daughter Is a Devil?

Dad... Let's sleep a little longer... Lin Hua was woken up and found a little girl about thirteen or fourteen years old next to the bed, still wearing his white T-shirt. He looked confused. He was a student. When did he give birth to such a beautiful girl? And according to her, she came back from time travel twenty years later and is the future demon king who will destroy the world...