D.Gray-man - Proof In Your Moves. Title: Proof in Your Moves. Fandom: D.Gray-man. Warnings: AU - The one in which they're a rock band. Characters/couples: Allen/Rabi, mentions of several others. Summary: Allen says: 'I like the collar. You should keep it'. Rabi thinks: Why the hell not. Rating: NC17. Notes: Written for springkink: D.Gray-Man, Allen/Rabi: collars - the clues to you and I are not so easily defined.