The Mushi Mushi no Mi, Model: Yellowjacket is a Zoan-type Devil Fruit that allows the user to transform into a Yellowjacket hybrid or full Yellowjacket at will, making the user a Yellowjacket Human (救命ジャケツの人間 Kiiro no jaketto ningen). "Mushi" is the Japanese word for insect. It is known as the Insect-Insect Fruit, Model: Yellowjacket in the FUNimation Dub. It was eaten by the former Marine Captain and current Night Blade Pirate "The Swarm" Akahito Tsuruga