Character
Yu Han Sung
유한성
Also known as: ユハン
Biography
Show bio — may contain spoilers
Yu Han Sung is an Advanced Ranker and the former Test Director of the Second Floor. Notably, he is a key member of FUG in taking Viole to the top. He is the main antagonist of Part I. He is a well known ranker partly because he rejected becoming a High Ranker.
Appears in