One Piece Episode 771 English Subbed Episode Title:A Vow Between Two Men! Luffy and Kozuki Momonosuke!.Episode Description:After learning that Oden was a Roger Pirate, the Straw Hats learned Kaido and the shogun after Momonosuke and the others because they believe that Oden passed down the knowledge of Laugh Tale to them. Kin'emon reveals that their intention is to take back Wano and open its borders by killing Kaido and the shogun. When Kin'emon asked Luffy for his help, he refused and demanded that Momonosuke speak for himself. After remembering his parents being killed by Kaido, Momonosuke states his desire to take him down and Luffy for help. Accepting his request, Luffy and Law form an alliance with the minks and the samurai to take down Kaido and the shogun.