How Old Is Monkey D Luffy in Solo Leveling

Let's get straight to the point: Monkey D. Luffy, the iconic Straw Hat pirate, is not a character in the world of Solo Leveling. While both series feature incredible powers, epic battles, and protagonists who rise against overwhelming odds, they exist in entirely separate universes. Luffy hails from Eiichiro Oda's legendary One Piece, an expansive pirate adventure, while the powerful Sung Jinwoo is the hero of Chugong's acclaimed web novel and manhwa, Solo Leveling, set in a modern world plagued by monster gates....