Days before the Straw Hats arrive at the mysterious island of Zou, they first encounter a tremendous naval vessel called the 'Buddha Dawn,' captained by a unique and boisterous figure named Jun the Lion Heart. Jun--a former navy crewman--commandeered the ship with his group of friends after an attack left his former fleet in ruins. Seizing the opportunity to start a new life, they transformed it into their own personnel pirate ship, adventuring and sailing the seas ever since as the 'Highly Refined Pirates.' Jun is determined and certain he will one day become king of the pirates, and although he respects the Straw Hat crew and shares many traits with Luffy, he will let no others stand in the way of realizing this dream. When the Straw Hats arrive, they first discover a warm welcome, with a wild party and competitions for every member of the crew to partake in. Yet soon after, the pleasantries wane, and the crew begins to realize a darker tale is lurking just beneath the surface. Now, the stage is set for Luffy to face another impossible challenge on his journey to become king!