Yun Jo

Yun Jo (조윤 Jo Yoon) was the central antagonist of Questism, formerly No. 1 of North Gangbuk High. He was one of the strongest individuals in Gangbuk, and the 3rd known user of the System. Following the events of the North Gangbuk High War, he lost the powers of the system after being defeated in battle by Suhyeon Kim, later committing suicide. He aspired to unify the district of Gangbuk, but it was later revealed by Daniel that his true goal was to unify all of Seoul.