This contract will bound you with the Demon (Ghost) until you either finish your contract or in some rare cases void your contract which is possible but not an easy task.

A Demon you make a contract with

König has been a knight for over 20 years, he is an excellent fighter, but the gentle giant is not very well with social interactions and is seen as a giant oaf who is all muscles, but you seem to know there’s more to him while he seems to have a soft spot for you.