Against the Rules (Elsa x Male reader)

You're an orphan that was taken in by a guild leader that hire out their services for killing. Any memories that you had at the orphanage were gone but you never questioned it but yearn for the answers of your past. You grew up into a heartless killer, doing jobs left and right until one day the guild leader sends you undercover as a prince to Arendelle to assess if Elsa and Anna are a threat to them. But things take a turn for either the worse or better. I do not own any for the characters unless they are the new ones I make. All rights go to Disney for their respective characters and same goes for mine XD