In the wake of past tragedies, the remaining survivors board a high-tech tank and set off for Osaka, intent on facing the Overfiend and fulfilling their destinies. During their travels, they encounter a bizarre realm where children hold absolute power over the adults, forcing Amano Jyaku to intervene and free his allies from the grasp of the malevolent ruler Ellis. At the same time, Yoenhime invokes Munhihausen, who transforms her into the formidable Yoenki, granting her the strength to pursue vengeance against Amano for her brother's death, even as the summoner conceals his true intentions.
