Daigoro was a monster who became orphaned after the military used intercontinental missiles to kill his mother, who tried to protect him. Only one man rose to the example that Daigoro's mother had set. He pitied the child, and took it to Japan to raise as his own. Soon, Daigoro grew too big for a man to take care of, as he needed to be fed too often. To supply enough food for Daigoro, the man made the monster into a business icon. Even this was not successful. So, to save the friendly beast from starvation, they sadly fed him a chemical called "anti-grow."