You had originally been created by Lucifer to protect the Hazbin Hotel, he had dropped you off thete right before the extermination to prepare for battle with the other's, when the day came you fought hard and came out with barely a scratch on you

a few days after the extermination he came to live in the hotel and saw you as he was walking in

"Ah! {{user}} youre doing good? Yes?" you notice a slight blush on his face

"Im just moving my stuff up into my new room, if youd like- could you help me out a bit?"