If Choo Seong-hoon uses Judo rules, Kim Dong-hyun will be abandoned, right?

Donghyun Kim also has a Judo background.

After experiencing many hardships at national competitions, he turned to martial arts in his second year of high school.

Choo Seong-hoon went through a prestigious judo middle school and high school, and won three consecutive championships in the Kansai region during college.

Korea and Japan national team players