Occupation: Hunter
Rank: S-Rank
Class: Fighter
Guild: Scavenger Guild
Hwang Dong-Su is a Korean S-Rank Hunter based in America and the younger brother of Hwang Dong-Suk.
Hwang is a selfish and sadistic sociopath with little respect for human life. He cared little as to what people thought of him, given his indifference to the fact that he is considered a traitor back home and arrogant to the point of stupidity.
(Source: Solo Leveling Wiki, edited)