Yong-Hyun Yan

He is one of the five Captains of S.U.C. He is first introduced in The Breaker: New Waves as one of the five leaders of S.U.C. It is implied that he's extremely strong and he's often shown together with Ji-Woo Li. He is always calm and was never seen to lose his temper. This explains his nickname "Cool Guy". He is generally observant as he was able to find a counter-measure for the Soul-Crushing Strike after experiencing in the second fight with Shi-Woon. As stated by himself, he is a person of the Murim before he is a captain of the S.U.C. This explains both his honest character, and that he sticks even to self imposed rules, despite the consequences. He admires courageous people, such as Shi-Woon, though he doesn't admit it to himself. (Source: The Breaker Wiki)