The Mechanical God and the God of Life have finally met each other. When Humanity found a new monster, they released Mechagodzilla to investigate if it's good or bad. When they activated the cameras, everyone couldn't believe it. It was an actual Godzilla. The ancient cave drawings were true, Godzilla, the god of life and the creation of their kind, had finally arrived on planet earth.
Humanity sent out a signal to Godzilla that they're using his mechanical self to protect and serve the planet, and not to kill him.
