Nekomamushi and the Guardians reach Whitebeard's home island. Nekomamushi finds Marco in a hidden village where he works as a doctor. During the meeting, Marco tells Nekomamushi about Whitebeard's childhood and the reason he cannot leave the island.

A mysterious country, a rampaging slasher, ancient samurai rituals of seppuku - and Zoro in the crosshairs! When a street assault occurs, all signs point to Zoro! Meanwhile, Luffy finally arrives at the Land of Wano but all his friends are nowhere to be found.