Episode 514 - The Straw Hat Pirates' Final Promise! Luffy’s Battle for the Pirate King’s Throne

Episode 514
The Straw Hat Pirates' Final Promise! Luffy’s Battle for the Pirate King’s Throne
Japanese: 麦わらの一味の最後の約束！ルフィの海賊王の座をかけた戦い
Mugiwara no Ichimi no Saigo no Yakusoku! Rufi no Kaizoku-Ō no Za o Kaketa Tatakai

The Straw Hat Pirates sail onward, encountering a new island that appears to be under the control of a powerful warlord. The island is heavily fortified, and the crew must find a way to infiltrate it to uncover more information about the treasure. As they approach the island, they realize that they are being watched by the World Government’s agents.