A Giant Monstrous Being appears in Yamagata Prefecture, and due to the Mini Shinkansen track configuration, only Akita can successfully get there. While Hayato and Tsuranuki take make-up tests, Akita heads off on his own. But the Giant Monstrous Being proves to be far too strong for him to handle. At the last second, Akita is saved by… a never before seen Shinkalion?!