After escaping from the interrogation room on MultiEarth A0073, Kunai takes Reiji with him and crosses dimensions to MultiEarth Z2066. Waiting for them there was the Galactic Syndicate Bai Akube, the greatest enemy of the Galaxy Federal Police. In exchange for bringing Reiji with him, Kunai had made “a certain promise” to the leader, Rurugie…!? Soon, Kunai and Reiji engage in a massive brawl within Bai Akube’s impregnable giant fortress. Kunai’s heart is shaken by Reiji’s fearless fighting style…