Yoru, Grand Piece Online Wiki

The Yoru is an unreleased sword. It is a heavy large black-bladed sword, and is considered to be the strongest sword in the One Piece world. As all special swords (those which have specific abilities), it has 2 moves, meaning that it could be considered complete, for the time being. Also, as said in the Coffin Boat's description, the Yoru is the base for the boat's mast. So far, we have seen 2 different techniques

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