Yu Han Sung
유한성
Also known asユハン
- Gender
- Male
- Age
- 500+
- Birthday
- —
- Blood type
- —
About
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.
