Castle 

“Facing the truth only distances you from vengeance. And the stronger your opponent, the further you have to remove yourself from the truth.” Castle. The criminal organization that gathers in the Castle Hotel in Gangnam. Eight years ago, they killed Shin Kim’s father. Then they killed his mentor. Now, he wants revenge-- and he knows just the people he’ll need to get the job done. (Source: WEBTOON) Note: Includes two extra chapters.