Prologue

(NOT Pre-written, NONE OF THE ART IS MINE, got the photos off google and pinterest, so I'm not sure who made them! Credit goes to the owners of the photos.)

A short story based on the song Teeth by 5 Second of Summer. The part that goes "Blood on my shirt, rose in my hands. You're looking at me like you don't know who I am. Blood on my shirt, Heart in my hands. Still beating." Ace, a demon, and Onyx, a human, who seem to know each other long before the first encounter. What happened..?