Kiku Ono, commonly known as O-Kiku, is a samurai from the Land of Wano in the anime series One Piece. As a loyal retainer of the Kozuki Family, Kiku is a skilled swordswoman with a gentle and compassionate personality. She is also the younger sibling of Izo, a former Whitebeard Pirate. Kiku plays a significant role in the Wano Country Arc, assisting the Straw Hat Pirates and the alliance in their mission to liberate Wano from the tyrannical rule of Kaido and Orochi.