It's no secret that Sehun loves dark things, mysterious things; horror, the unknown. And, above all, the occult. Everything he practices is harmless anyway. That is until one night he decides and try and summon a demon. After signing his name in blood, he's disappointed that it seems to fail. But it changes when Kai appears; Sehun's name engraved on his right collar bone. Realizing he accidentally brought a demon to this world, Sehun agrees to help find a way to send him back; all the while both fighting their growing romantic feelings for each other.