Kenka Oji-san - Namo Naki Chuunen, Tsuyo Sugiru.NewKenka Oji-san: Namo Naki Chuunen, Tsuyo Sugiru.; 喧嘩おじさん 名もなき中年、強すぎる。; Brawl Dad: The No-Name Middle-Aged Beast

Fuyuo Shigaraki is flat broke, divorced, and barely scraping by. With his daughter in desperate need of 3 million yen, this middle-aged underdog is at the end of his rope. Thats when he meets a bizarre self-proclaimed high school girl brawler who gives him an outrageous idea: Hey, Mister why not make money with street fights? Dragged into the underground world of cash brawls, Fuyuo reluctantly steps into the ring until the first punch lands. Turns out, this nameless old man isnt so average after all. Hes the only man to ever draw against the reigning MMA world champion. As fists fly and reputations crumble, the beast he buried long ago awakens once more and a new legend of the streets is born.