Occupation: Hunter
Rank: S-Rank
Class: Unidentified
Affiliation:
Sung Il-Hwan is a Korean S-Rank Hunter and Jin-Woo's father. Il-Hwan cares deeply for his family and has little tolerance for those who try to mess with them or get in his way, as shown when he beat Hwang Dong-Su to a bloody pulp for both lying to him over Jin-Woo's current status and lying to the Americans that he was a monster.

Around ten years prior to the start of the story, Il-Hwan mysteriously disappeared inside a dungeon during a raid, leaving his family to presume him dead and his wife to raise their children on her own. Six years later, his wife fell victim to Eternal Slumber, leading their son Jin-Woo to follow in Il-Hwan's footsteps and become a hunter in order to provide for himself and his sister, as well as pay for his mother's medical bills.




Abilities:

(Source: Solo Leveling Wiki, edited)