When the Enma Syndicate’s chairman dies, Japan’s supernatural underworld is turned on its head, leaving gangs of ayashimon poised on the brink of war. Urara, the late chairman’s daughter, has plans to come out on top, and she’s found an unlikely ally to help make it happen—Maruo, a human who dreams of being a manga hero. Maruo always wanted to be like the characters in his favorite manga. Unfortunately, his training efforts have paid off a little too well. Now he breaks everything he touches, can’t find a job, and wins every fight too easily. However, when he encounters a girl being pursued by a group of thugs who turn out to actually be monstrous ayashimon in disguise, it seems like his real-life manga story is about to begin!

突如姿を現した二代目炎魔会会長・灯独歩──!!　マルオは敵の親玉の登場に血を沸かすが、その拳は独歩の体をすり抜けウララ達は窮地に立たされる。マルオ達を復讐の駒と見做そうとするウララだが、満身創痍のマルオの姿に心動かされ、最後の切り札の懐刀を使おうとし…!?

轟連合総長コットンとの“たいまん”に決着を付け、ウララ組は鬼王と炎魔会に起きた二年前の出来事を知る。マルオは独歩との再戦に向け修行を始めるが、新生炎魔会は更に勢力を拡げ、仲間からも犠牲者が…!?　苛烈さを増す抗争の中で、マルオは何を見出すのか。妖しき極道譚、ここに完結──!!