Gogo Matsumoto, an 11-year old aloof martial arts prodigy, along with her half-demon older sister; Nono, her mama; Mama, and her cool pet frog; Coolfrog, embark to compete in a martial arts tournament that pits humans against demons.
Even when trying to go for a relaxing camp out in the woods, the Matsumoto family is bitterly reminded that opponents in the Infinite Tournament can pounce at any place and any time. well that flippin' stinks.
Emperor Koro commissions the iconic Demon Wrestling Federation tag team twin duo, "The Nabe Brothers", to compete in his Infinite Tournament and break Mama's legs!