Episode 663 - Luffy's Ultimate Climax! The Struggle for the Pirate King's Essence

Episode 663
Luffy’s Last Challenge! The Battle for the Pirate King’s Legacy
Japanese: ルフィの最後の挑戦！海賊王の遺産をかけた戦い
Rufi no Saigo no Chōsen! Kaizoku-Ō no Isan o Kaketa Tatakai

The Straw Hat Pirates continue their journey through the Grand Line, but the World Government is closing in on them. The crew is forced to navigate through a series of dangerous waters and islands as they try to evade capture. Along the way, they encounter new friends and foes, each with their own goals and ambitions.