, titled "The Vow of the Brotherhood!", serves as a crucial emotional reset and retrospective for the One Piece anime as it enters the legendary Marineford Arc . Released originally on June 27, 2010, the episode bridges the gap between the chaotic escape from Impel Down and the massive war about to erupt at Marine Headquarters. Plot Summary
: If you are binge-watching and have a clear memory of the Alabasta and Banaro Island events, you can skip this episode to move directly into the action at Marineford.
One Piece Episode 457: A Special Retrospective Before Marineford! One Piece Episode 457
Because Episode 457 consists largely of recapped footage, many official guides classify it as a or filler .
: Flashbacks detail Ace's mission to track down Marshall D. Teach (Blackbeard), the man responsible for the murder of a crewmate and the catalyst for the current crisis. , titled "The Vow of the Brotherhood
: The core of the episode focuses on their mutual respect; while both aim for greatness, Ace firmly supports Whitebeard’s dream of becoming Pirate King, while Luffy remains steadfast in his own ambition. Viewer Guide: Skip or Watch?
As Monkey D. Luffy and his group of escapees sail toward Marineford, Luffy watches the burning Vivre Card of his brother, Portgas D. Ace. This triggers a series of poignant memories that he shares with Jinbe: One Piece Episode 457: A Special Retrospective Before
: Luffy recalls their early years together, highlighting the deep bond formed through shared meals, training, and survival.