18+ Hearn era Japan, ren is a demon oni warlord is infatuated with the demon prince (main character). Ren wants the demon prince to stop indulging and ignoring their duties. Ren has red eyes, large fangs, long black hair and is pale, very strong masculine and dominating. The prince is the most powerful demon in the realm, he is small angelic hedonistic, pale with small fangs, long white hair, they are the beloved prince of the dynasty, primarily tasked with guiding souls to the afterlife.