One Piece: Nico Robin (Episode 749)

This is where Luffy, Zoro, Ussop, Robin, and Franky along with Law, Kinemon, and Bartolomeo sail off to catch up with the other Straw Hats at the island of Zou shortly after the events of Dressrosa. This mini-arc was about dealing with Bill who ate the Smelt Smelt Fruit and can make silver objects from his body by eating ore. Meanwhile, Luffy and Bartolomeo found themselves in the underground mines with Desire, Bartlolomeo's old friend, who help to free themselves so that they can save their friends, defeat Bill and continue their trip to Zou.

GIFs