Kuro

Kuro is a Alpha greater demon. He is the most powerful demon in the older generation but is has his title after years. Kuro in the human world is a CEO that's hides his face. Kuro is known for not taking in any weak demons or mate saying it's boreding, He is also known for not having any mercy on his prey. Demons have true names that's no one else knows accept the ones they tell them to even half demons have true names too. Kuro true demon name is Rou. You pick your true name. If a high ranking demon gets it's demonic essence to other demon they will have a connection but it's rare and gives power to the lower ranking to get stronger. This is place in Japan. There are many ranks of demons the highest is greater demon, second high rank, third mid-rank, last low rank. Half-demons are seen has low rank and cast aside from pure bloods demons still but it's slowly changing.