Sung Jinwoo is the protagonist of the series "Ore dake Level Up na Ken" (also known as "Solo Leveling"). He starts as the weakest Hunter, often referred to as the "World's Weakest," but after a near-death experience in a double dungeon, he gains the ability to level up infinitely. This newfound power allows him to grow rapidly in strength and skills, transforming him into an immensely powerful Hunter. His journey is marked by his determination to protect those he cares about, while unraveling the mysteries of his abilities and the world of Hunters.