Solo Leveling, also known as I Level Up Alone, is a South Korean web novel written by Chugong. It was serialized in Kakao's digital comic platform KakaoPage and later published by D&C Media under their Papyrus label.

The story centers around Sung Jin-Woo, the weakest of the weak hunters who one day discovers a hidden dungeon. After narrowly surviving an overwhelmingly powerful double dungeon, Jin-Woo mysteriously receives a program called the System, which allows him to level up in strength, unlike any other hunter.

Follow Jin-Woo's journey as he rises from being the weakest hunter to becoming the most powerful, facing increasingly dangerous threats along the way.