One Piece has a vast cast of characters, which is part of its appeal. This deep and wide roster of characters fits the franchise's globe-trotting adventure storyline and helps make the world feel like a living, breathing place. Of these characters, Monkey D. Dragon is one of the most interesting as he plays a massive role in the story, and his importance is growing with every passing chapter as he seems to be a crucial part of the endgame.
Source：https://www.cbr.com/one-piece-monkey-d-dragon-explained/
