Monkey D. Luffy and his crew arrived on the Sunny to take part in the Pirate Festival, the largest celebration exclusively for pirates. The festival was organized by Buena Festa, who invited the Straw Hats and all the crews of the Worst Generation to participate. Even the Shichibukai and Marines were drawn to the event, unable to resist the alluring secrets hidden behind its grandeur. The festival's centerpiece competition, the hunt for one of Gol D. Roger's treasures, captivated every pirate and sailor present. As the crews fiercely battled each other, a sudden new arrival transformed the game in unexpected ways.