Episode 527 - The Last Promise! Luffy vs. the Marines’ Elite Forces

Episode 527
The Last Promise! Luffy vs. the Marines’ Elite Forces
Japanese: 最後の約束！ルフィVS海軍の精鋭部隊
Saigo no Yakusoku! Rufi VS Kaigun no Seiei Butai

The rivalry with the treasure hunters intensifies, with Luffy facing off against their leader in a high-stakes battle. Meanwhile, the rest of the crew fights to protect the treasure and uncover the secrets hidden on the island. The crew learns that the treasure may not only bring wealth, but could also grant unimaginable power.