Kagero is a mech built by Isaac in the game One Piece: World Seeker, meant as backup armor for his main suit. It served as the boss of the Void Mirror Prototype DLC, copying the techniques of Zoro and Kizaru before Zoro destroyed it.
The machine was a near twin of Isaac's main suit, set apart only by its coloring: a metallic silver shell with a green glow shining out from within its body. Pushed past its limits by Zoro, it entered self-destruct mode, its eyes taking on a flame pattern and the inner light turning red.
Kagero was engineered to study and learn the moves and techniques of whoever it watched. With that ability it mimicked Zoro's Three Sword Style and the light powers of Kizaru's Pika Pika no Mi. Zoro judged its imitation technically flawless yet hollow, lacking the weight and impact of strikes earned through real effort. Its armor was forged from Wapometal and its weapons from Seastone. It fought with two enormous squared blades shaped like spatulas and, like Isaac's suit, ran on a Dyna Stone hidden in its chest that could be detonated as a final resort. As with Isaac's other robots, it could turn its hands into machine guns. Being a machine, it had no personality of its own.

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Kagero is a mech built by the character Isaac in the game One Piece: World Seeker, designed as backup armor for his main suit. It served as the boss of the Void Mirror Prototype DLC.
Kagero was engineered to study and copy the moves of whoever it watched, allowing it to mimic Zoro's Three Sword Style and Kizaru's Pika Pika no Mi powers. Zoro judged its imitation technically flawless but hollow, lacking the weight of strikes earned through real effort.
Kagero's armor was forged from Wapometal and its weapons from Seastone, and it wielded two enormous squared blades shaped like spatulas. It also ran on a Dyna Stone hidden in its chest that could be detonated as a last resort.
Kagero clashed repeatedly with Zoro, Kizaru, and Tashigi before finally being brought down by Zoro. Pushed past its limits, the mech entered a self-destruct mode with flame-patterned eyes and a red inner glow.
Kagero was assembled within the Sea Prison Aquamarine on Jail Island and was released alongside Isaac's other robots when he launched his scheme. As a machine, it had no personality of its own.
Looking for more on Kagero (Non-Canon)? The One Piece Wiki on Fandom has a dedicated page with community notes.
View on FandomThis content is original writing by Daddy Jim Headquarters based on the One Piece anime series, manga, and official materials. Episode and chapter references are cited where applicable.
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