Episode 431 - The End of the Line! Luffy’s Victory and the Pirate King’s Legacy

Episode 431
The End of the Line! Luffy’s Victory and the Pirate King’s Legacy
Japanese: 終わりの始まり！ルフィの勝利と海賊王の遺産
Owari no Hajimari! Rufi no Shōri to Kaizoku-Ō no Isan

Luffy and the crew are victorious against the mercenaries, but they soon learn that the true enemy is a much larger and more powerful organization. The crew must deal with the aftermath of their battle and prepare for the next phase of their journey, realizing that they are about to face an unprecedented challenge in the Grand Line.