One Piece Chapter 539 — The Depths of Impel Down - Kind: chapter overview - Chapter: 539 - Characters: Whitebeard, Ivankov, Luffy ### Summary Magellan, Ivankov, and the lower prison levels turn Ace’s rescue into a desperate race. The chapter mainly follows Whitebeard, Ivankov, Luffy, keeping the focus on the Impel Down storyline.