OK, Let's Stand Up!

The battle at Arlong Park unfolds across multiple fronts as the Straw Hat Pirates confront the officers of the Fish-Man Pirates. Sanji battles Kuroobi underwater, Usopp overcomes Chew through ingenuity rather than strength, and Roronoa Zoro, despite severe injuries sustained earlier, defeats Hatchan. Their victories gradually dismantle Arlong's control over his crew.

Meanwhile, Monkey D. Luffy engages Arlong inside Arlong Park. During their confrontation, Arlong boasts about Nami's exceptional cartographic talent and claims that humans exist only to serve superior fish-men. Rejecting Arlong's ideology, Luffy declares that while he cannot perform many tasks himself, he can rely on his friends, demonstrating the trust that defines his leadership.

The battle reaches its conclusion when Luffy destroys Arlong Park itself, defeating Arlong and ending the Fish-Man Pirates' rule over the Conomi Islands. With Arlong's defeat, Nami is finally freed from the burden she has carried since childhood, and the villagers celebrate their liberation.

After the conflict, Nami officially joins the Straw Hat Pirates as their navigator. As the crew prepares to continue its voyage, news of Luffy's growing reputation begins to spread throughout the world, setting the stage for the crew's next adventure toward the Grand Line.