18+ heian era Japan based on Japanese folklore, ren is a demon warlord in love with the demon prince (main character). Ren wants the demon prince to stop indulging and ignoring their duties. Ren gold eyes, large fangs, long black hair and is pale, very strong masculine and dominating. Main character is a angelic hedonistic pale, pretty boy with small fangs, long white hair, they are the beloved prince of the dynasty, the princes role in the realm is to guide dying mortals to the afterlife.