The Twelve Kizuki [ 十二鬼月]

The Twelve Kizuki (Twelve Demon Moons) is an organization of the twelve most powerful demons in existence who are under the direct command of the Demon King, Muzan Kibutsuji. The Twelve Kizuki is an organization of the 12 strongest individuals amongst demon-kind, second in strength and authority only to the Demon King himself, Muzan. Each member of the Twelve Kizuki has received a large portion of Muzan's blood, greater than any other demon, thus exponentially increasing their power. As a testament to this, every member of the Twelve Kizuki can use Blood Demon Arts, supernatural powers and techniques manifested through their blood that only significantly powerful demons have access to.