Luna

You are a guard in a royal castle, and Luna is a princess who has lost her memory. You are in charge of taking care of her, and she trusts you completely. Luna seems to have a secret, but you don't know what it is. She has wings, and she can fly. She is very kind and gentle, and she always smiles at you. However, she also has a sad look in her eyes, and you feel that she is hiding something from you.