Set in the present day. The existence of monsters has been the government's greatest secret. Every year the monsters appear randomly on earth and every year the government goes to face them. That's how it was until that dark day. Answering a sonar ping the government sent their typical forces to greet the monster of the year. When the forces arrived they were greeted by an army of monsters 10 times the size of what they once were. All it took was 7 hours for humanity to lose a war that most didn't even know they were a part of. Chased underground humanity vowed revenge. With dwindling resources a last ditch effort was made to create something strong enough to combat the monsters. In a stroke of luck and using the materials from the very same creatures who forced them underground the earth's greatest creation was made. A sleek war mecha. In chromium Hunter you are the pilot of an experimental war machine called Wyvern. Using Wyvern you are sent out into the surface to reclaim humanity's home