Summary
Kaku makes his debut in the Water 7 Arc, specifically during episode 230, where he is introduced as one of the five foremen at Galley-La Company's Dock One. In this role, he specializes in mechanical diagnostics and conducting housecalls. Notably, it is Kaku who inspects the Going Merry and delivers the devastating news to the Straw Hats that the vessel is broken beyond repair. He possesses powerful legs that enable him to run swiftly and leap across vast distances over the cityscape, allowing him to complete ship checkups with impressive speed.
