One Piece

Season 18, Episode 771

Episode Title: A Vow Between Two Men - Luffy and Kozuki Momonosuke

Air Date: 2017-01-08

Overview:

More mysteries of the Kozuki Clan are revealed - and the samurai propose an alliance to help topple Kaido! But Luffy's response will shock the crew... and force the young daimyo to take responsibility!