Rumor has it that Lust was visiting town so Hwanwoong was sent to make sure the demon wouldn't create havoc. But what will happen when the said demon falls in love with him instead? And what was his intentions for visiting Earth in the first place? Angels and Demons! AU Pairings : - Ravn x Hwanwoong - Leedo x Xion - Seoho x Keonhee