When reports surface about the destruction of islands in East Blue, Monkey D. Luffy and his crew set out to investigate. Along their journey, they encounter a peculiar pirate ship descending from the sky, commanded by the notorious Shiki 'the Golden Lion'—a fugitive from Impel Down who consumed the Float-Float Fruit. Intent on challenging the World Government, Shiki seizes Nami to serve as his navigator and holds the remaining Straw Hat Pirates captive on his airborne islands, leaving her torn between loyalties. Stranded in Shiki's domain of absolute power, Luffy and his comrades must navigate the enigmatic landscape to rescue their kidnapped friend and steer clear of peril.