In of One Piece (titled "The Battle Against the Large Tiger! Who Will Be the Captain?"), the "paper" being referenced is likely the Vivre Card that Ace gives to Luffy . Key Context and Plot Details
Watch the brothers encounter the giant tiger and work toward their dreams of piracy in this episode summary: One Piece Episode 499: Luffy Meets a Tiger TikTok• Feb 5, 2025 One Piece Episode 499
: This specialized "life paper" is made from the fingernail clippings of a person and reflects their life force. Ace gives it to Luffy as a symbol of their bond, allowing them to find each other again regardless of distance. In of One Piece (titled "The Battle Against the Large Tiger
: The brothers assist an old pirate named Naguri in building a pirate ship and eventually team up to defeat a giant tiger that had previously bested them. Ace gives it to Luffy as a symbol
: This episode is part of the Post-War Arc , focusing on a flashback of Luffy, Ace, and Sabo's childhood in the Gray Terminal and Mt. Colubo.
: While the overarching flashback is canon, Episode 499 includes some filler elements, specifically the character Naguri, who was created for the anime to expand on the brothers' training.