Beethoven is a steel-cored whip carried by the Marine rear admiral Kujaku. Strong enough to shatter stone, it pairs with her Devil Fruit ability to bend whatever it strikes to her command.
Beethoven belongs to Kujaku, a Marine holding the rank of rear admiral. The weapon is a lengthy beige whip reinforced by a steel core. Its grip departs from a typical lash, instead resembling a sword's hilt complete with a circular hand guard. The kanji behind its name translate roughly to 'Military Combat Whip,' and the chosen reading doubles as a pun on the surname of the German composer Ludwig van Beethoven.
The internal steel running through Beethoven makes it a punishing whip, able to crack and break through solid stone. Its real menace, however, comes from how Kujaku combines it with her Muchi Muchi no Mi powers. Anything the lash lands on is compelled to follow her orders, turning a strike into a means of control rather than mere injury.
Kujaku is the sole wielder of the whip. It first appears sheathed across her back before she puts it to use later in the story, exercising her Devil Fruit through it to dominate her targets.

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The whip Beethoven belongs to Kujaku, a Marine rear admiral, who carries it sheathed across her back before using it in battle.
Beethoven is a lengthy beige whip reinforced with a steel core, with a grip shaped like a sword's hilt complete with a circular hand guard.
The steel core inside Beethoven makes it strong enough to crack and break through solid stone, and combined with Kujaku's Muchi Muchi no Mi power, anything the whip strikes is compelled to obey her orders.
The kanji behind Beethoven's name translate roughly to 'Military Combat Whip,' and the chosen reading doubles as a pun on the surname of the composer Ludwig van Beethoven.
Kujaku ate the Muchi Muchi no Mi, a whip-based Devil Fruit that lets her force anything her whip Beethoven strikes to follow her commands.
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