Tae-Soo Park

A Korean gangster and the true mastermind behind most of the gang's more underhanded actions. Originally the boss of the gang, he passed leadership over to Ken as he realized his potential and charisma. He serves as Ken's right-hand​ man, and has numerous underground connections and is in charge of handling the day-to-day business of the gang. He can be seen as the real evil behind the gang and is often doing dirty works for the gang, but his loyalty to Ken is unquestionable. He took over the gang after his father was killed. He was later put into a coma by Ban-Phuong's men.

(Source: Wikipedia)