A crimson apocalypse sweeps world. Luke is betrayed, infected with zombie venom, and near death. He awakens the sealed aircraft carrier System and subjugates Luna, an S-Class female zombie. Using an aircraft carrier as base, Luke upgrades it, gathering survivors for armed force. He clears disruptive factions in Seaview City and contains the biochemical disaster. Later, he tames the SSS-Class Earth Dragon, eradicating the catastrophe and becoming the supreme ruler of this wasteland world.