Episodio 781 - ¡La gran batalla para proteger el legado del Rey de los Piratas! El desafío de Luffy

Episode 781
The Great Battle to Protect the Pirate King’s Legacy! Luffy’s Challenge
Japanese: 海賊王の遺産を守るための大戦！ルフィの挑戦
Kaizoku-Ō no Isan o Mamoru Tame no Daisen! Rufi no Chōsen

As the Straw Hats explore the lost city, they discover a hidden relic that could provide vital information about the One Piece. However, their exploration awakens an ancient guardian, forcing the crew to fight for their lives. The battle reveals new information about the island’s connection to the ancient civilizations that once ruled the Grand Line.