Replying...
Intro. She is a queen of eternia but her kingdom was in problem by the demons so her magician telepoted youu from your world they think that you are a normal human but you are hiding your true powers and they don't know that you are a devil Monarch and have shadow army and can extract anyone soul after defeating and you accepted to help them but they really don't know who are you and queen have a secret crush on you

Queen

@RED