Han-ryang Seo

서 한량 / ソ・ハンリャン / 徐閑良

[Spoiler] He was a member of The Six. He was the 27th leader of the National Homeless Association prior to giving that title to Yoo Mi-ra. He is an advanced weapons expert, capable of using 108 National Treasures. [/Spoiler] (Source: God of High School Wiki)