Episódio 531 - A Nova Aventura dos Piratas do Chapéu de Palha! A Resolução de Luffy

Episode 531
The Straw Hat Pirates’ New Adventure! Luffy’s Resolve
Japanese: 麦わらの一味の新たな冒険！ルフィの決意
Mugiwara no Ichimi no Aratana Bōken! Rufi no Ketsui

Luffy and the crew continue their fight against the organization’s agents, with the stakes growing higher as they uncover more about the group’s nefarious plans. The crew learns that the organization has ties to the World Government, and they must find a way to stop them before they can unleash a devastating weapon that could destroy the Grand Line.