How Old Is Monkey D Luffy in Jujutsu Kaisen

Let's get straight to the point and clear up any confusion: Monkey D. Luffy, the rubber-limbed protagonist of One Piece, does not exist within the dark, cursed world of Jujutsu Kaisen. These are two entirely separate and distinct anime and manga universes, created by different authors (Eiichiro Oda for One Piece and Gege Akutami for Jujutsu Kaisen), each with their own unique characters, storylines, and power systems. While it's fun to imagine crossover battles and character interactions, the reality is that the Straw Hat Captain belongs solely to the Grand Line, sailing towards his dream of becoming the Pirate King....