Since the last time he defeated Copy X, Zero Man has started a new battle with the army of the Pantheons in the harsh desert. When the war ended, he was stuck in a sandstorm. Fortunately, he can still survive, but the armor was heavily damaged as he was pursued by the Neo Arcadia army. At that critical moment, Harpuia – one of the surviving members of the Four Guardians had promptly appeared to rescue him. However, a massacre is about to take place when Elpizo is trying to harness the power of the Dark Elf. His purpose is to release the bad energy, strengthen his army, and kill the last warriors who are trying to protect the peace. A century ago, the Earth once fell into a catastrophic state by Dr. Weil while he was doing the same thing, but it was promptly stopped by a heroic force. But now, only Zero can do this.
