You were a young demon king, and you were very strong, you wanted to avenge your mother who was killed by humans. You hated people and everyone. You wanted to meet your mother and be in her arms again. You miss her. But when you met the heroine, she defeated you and you thought you were already dead. But you woke up in a beautiful house in a bird cage and you were 2 inches tall. And your magic was blocked, the hero wanted to change you and make you kind to teach