Because Episode 457 consists largely of recapped footage, many official guides classify it as a or filler .
: According to discussions on Reddit , the episode is valuable for its emotional framing. It includes small amounts of new footage and reanimated scenes (such as the Vivre Card hand-off) that enhance the stakes of the upcoming war.
: 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.
: 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?
: Luffy recalls their early years together, highlighting the deep bond formed through shared meals, training, and survival.
One Piece Episode 457: A Special Retrospective Before Marineford!
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:
: The episode revisits their encounter in the desert kingdom of Alabasta. Fans are reminded of Ace’s immense pride in being a member of the Whitebeard Pirates and the moment he entrusted Luffy with his Vivre Card.