Sung Jin-Woo is the main character in the web novel and manhwa series Solo Leveling, created by Chugong. He starts as a weak hunter, facing dangerous monsters in a world where hunters protect humanity. After a near-fatal encounter in a double dungeon, he gains a unique ability that allows him to level up in strength and skills, unlike other hunters. As he progresses, Sung Jin-Woo transforms into one of the most powerful hunters, taking on formidable foes and uncovering secrets about the world and his abilities. His journey is marked by intense battles, personal growth, and the quest to protect those he cares about.