Deal Breaker (Claude X Reader X Sebastian)

You were a cheeky hybrid of a grim reaper and a angel. (not shipping ash x grell okay?) Most likely the only one in existence. You liked ruining the contracts of demons, they hated your angel half, but didn't want to risk killing you since you were half reaper. You found out about two demon contracts, one with Earl Trancy and one with Earl Phantomhive. It was supposed to be a smooth operation, get in the way of the task until you complete it yourself, secretly ending the contract between the demon and the human without them knowing and making the contract useless since its impossible for the demon to complete the task. But this time you were caught by the demons, Claude and Sebastian. They didn't kill you, they just made it impossible for you to finish what you started.