Qudans first began playing Tekken from the first game in the series at a young age casually. It was not until Tekken Tag Tournament that he began to play seriously , quickly making a name for himself in the South Korean Tekken scene and became an EVO Champion for the game in 2005, defeating Ryan Hart in the finals . Qudans kept playing until 2007, retiring due to hand fatigue experienced from excessive exercising which even forced him to temporarily switch to using a Joypad for Electric Cancel 6  (he won the Tekken 5 and Tekken Tag Tournament events regardless). After this Qudans went on a five year hiatus from competitive Tekken, enlisting in the Army, going to University and getting a part-time job.
After his hiatus Qudans made his return to Tekken after being convinced by fellow player Ji3moon Ace to start playing Tekken Tag Tournament 2 and was motivated as well after watching Knee playing for numerous tournaments. His rise to stardom once again started with Tekken 7 however winning multiple tournaments such as the first season of AfreecaTV TEKKEN League and the SEA Major with the latter victory ensuring him a place at the first Tekken World Tour Finals where he emphatically won the event after a 10 year absence from North American tournaments. Shortly after this he was sponsored by ROX Dragons for the next TWT circuit but later signed with UYU in early 2018.
He would go on to make the Tour Finals once again after numerous Top-8 finishes in the regular circuit, eventually finishing 2nd place to Rangchu. A few months after this, Qudans won the True Gaming Invitational 2019 which featured one of the largest prize pools in Tekken 7 history, winning $60,000 after beating Chanel in a Bracket-Reset to win the tournament.
|2020-01-26||13 - 16th||Evolution Championship Series: Japan 2020||0 : 2||Saint|
|2019-12-07||17 - 24th||Tekken World Tour Finals 2019 LCQ||1 : 2||MulGold|
|2019-10-20||1st||East Coast Throwdown 2019||1 : 3|
3 : 2
|2019-10-11||3rd||Vanguard Bonus Stage||2 : 3||JDCR||$100|
|2019-10-06||13 - 16th||Electric Cancel 2019||0 : 2||jimmyjtran|
|2019-09-29||13 - 16th||REV Major 2019||0 : 2||chikurin|
|2019-09-01||7 - 8th||Summer Jam 13||0 : 2||Double|
|2019-08-17||7 - 8th||Collision 2019||0 : 2||NeNe The Dragon|
|2019-08-04||25 - 32nd||Evolution Championship Series 2019||L||double|
|2019-05-17||5 - 6th||Gaming Tent 2019||1 : 2||Shrimboo|
|2019-03-29||1st||True Gaming Invitational 2019||3 : 0|
3 : 2
|2018-12-02||2nd||Tekken World Tour Finals 2018||1 : 3|
1 : 3
vs. NeNe The Dragon
vs. Lil Majin
vs. Lee Min Ho
Tekken Tag Tournament
- His nickname originated from typing in his first name in a keyboard in English mode, which instead of typing "Byeong Mun" actually typed out "Qudans" instead.
- 2019-07-25 | by theScore esports
- 2018-05-12 | by Core-A Gaming