Directly following the conclusion of Urotsukidoji III, the survivors of the Azuma kingdom genocide travel aboard a futuristic tank with Osaka as the destination. There, they plan to face both the Overfiend and their own fates as well. Along they way, the stumble upon a civilization beyond imagination, where children cruely rule over the adults. It is up to Amano Jyaku to save his friends from this…
