Episode 457

"Special Retrospective Before Marineford - The Siblings' Vow!" is the 457th episode of the One Piece anime.

Short Summary
Luffy recalls his childhood with Ace, meeting him again in Alabasta and receiving his Vivre Card, meeting Marshall D. Teach in Jaya without knowing who he was, hearing the news about Ace's execution, and confronting Blackbeard in Impel Down. Ace, awaiting his execution in Marineford, recalls his encounter with Blackbeard.

Long Summary
Luffy watches Ace's Vivre card as it continues to burn and starts a conversation with Jinbe. He then recalls how the both of them had always been together. They always were eating together, sleeping together, and testing their skills together.

There is then a flashback of when Luffy and Ace met each other at Alabasta. It shows Ace expressing how he was part of the Whitebeard Pirates, and how the mark on his back was his pride. Ace tells Luffy that Whitebeard was the strongest pirate that the has ever met, and wants to make him Pirate King, not Luffy. With Lufy bluntly stating that he'll just have to fight Whitebeard. The scene switches to when Ace was on Luffy's ship, with Luffy asking him if he wanted to join his crew and Ace's explaining how he was hunting down Blackbeard. The scene switches again, to when Ace and Lufy part ways in Alabasta, and where Ace gives Luffy his Vivre card. Another memory appears of when Luffy met Blackbeard for the first time in Mock Town, arguing on whether the pie tasted good or not. Which continues to the fighting with Bellamy, the customers laughing at their belief of Sky Island, and Blackbeard claiming that a pirate's dream is everlasting. Luffy is then in the Kuja palace, showing his disbeief of the war that was to commence and how Ace is sentenced to execution. Continuing on with the flashbacks, Luffy is in Impel Down and meets Blackbeard, attempting to strike him, but to be stopped by Jinbe. It is there that Blackbeard explains how capturing Ace would allow him to become a Shichibukai and how Luffy should be thanking his brother for interfering, or else he would have capture Luffy instead.

Back to the present, Jinbe talks about how Ace's hunt for Blackbard began. On the other hand, the Marines assembling at the bay, where Ace is locked up. Ace recalls the fight he had with Blackbeard and his defeat. The episode ends with Ace locked up and gritting his teeth, three hours prior to his execution.