A Western Fantasy World, Summoning Cthulhu from Earth's Industrial Sector

Transmigrating to another world, I become a lowly mining slave, living in misery. Fortunately, Motherland will watch over every wanderer, even in this strange new world! A massive army of steel will inevitably reach the old world, stagnant for twenty thousand years! The Sky-High Mothership releases the Mystic Maiden Air Combat Fighter, missiles roaring, slaying dragon knights in the sky! New information-command tanks control attack drones, bombarding the ground, annihilating giants like Behemoths on the battlefield! A 10,000-ton missile destroyer opens all 24 vertical launch cells simultaneously, missiles raining down, sinking Leviathan in the deep sea! Even if a god descends, we must ask: "God? How many divisions does a god have?!" "Eat my trillion-ton Tsar Bomba!"