"When he matured into adolescence, Momotarō left his parents to fight a band of
Oni (demons or ogres) who marauded over their land, by seeking them out in the distant island where they dwelled (a place called Onigashima or "Demon Island"). En route, Momotarō met and befriended a talking dog, monkey and pheasant, who agreed to help him in his quest in exchange for a portion of his rations (
kibi dango or "millet dumplings"). At the island, Momotarō and his animal friends penetrated the demons' fort and beat the band of demons into surrendering. Momotarō and his new friends returned home with the demons' plundered treasure and the demon chief as a captive."
https://en.m.wikipedia.org/wiki/Momotarō
Luffy, Marco, Inu and Momo vs Kaido confirmed