King of the Minotaurs and the Monkey King's sworn "brother", King Uma is playful, flirtatious, and a mischief maker, but is very stubborn and serious when the time calls for it. She later perishes when she was swarmed by Nephilim after her fight with Byron and Lee Soo-Jin weakened her but not before establishing a contract with Baek Seung-Chul, becoming a half-ghost and his Charyeok.