About the Return to Sabaody Arc
The Return to Sabaody Arc, also referred to as the Straw Hats Reunion Arc, is the 24th story arc of the manga and anime One Piece, the first story arc of the Fish-Man Island Saga, and the first story arc of the second half of the series.
Two years after the Summit War of Marineford, the Straw Hat Pirates, who were previously separated by Bartholomew Kuma, reunite on Sabaody Archipelago, where they must deal with the Fake Straw Hat Crew and Pacifistas before resuming their journey.
Two years have passed, and Luffy retrieves his straw hat just as Hancock and the Kuja Pirates arrive to take him back to the Sabaody Archipelago. Luffy displays his increased strength when he shows that he has made friends with the wildlife and warns the animals not to hurt his friends. Hancock is even more infatuated with Luffy, though he tells her that he is not marrying her. With that, he places his hat on his head and prepares to leave Rusukaina.
Meanwhile, the Sabaody Archipelago has become much more lawless due to Marineford having switched locations to an area in the New World and their old base now being a common Marine base called G-1 that used to be on the other side of the Red Line. Rumors of the Straw Hats suddenly reappearing and recruiting new members have circulated. Brook is now a superstar, touring the Grand Line as the "Soul King." The Longarm Tribe that captured him are now his managers. Sabaody is the final stop on Brook's tour, as well as his farewell concert to his fans.