Pluton, One Piece Wiki

Pluton is one of the three Ancient Weapons, alongside Poseidon and Uranus. Pluton is a highly advanced warship capable of mass destruction, labelled the World's Worst Battleship (世界最悪の戦艦, Sekai Saiaku no Senkan?). It was constructed long ago in the city of Water 7 in the Grand Line. The battleship is said to be capable of destroying whole islands in a single shot and is located deep beneath Mt. Fuji in Wano Country. Pluton was first mentioned by Crocodile when he questioned Nefertari Cobra of it

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