My Rolling Fortress in a Dying World - Episode 2

Knowing he can make over $400 million in three days, the protagonist immediately begins a full security overhaul of Raptor Cave. He transforms the rocky cave into a titanium-plated, bomb-resistant bunker with layered defenses including biometric vault doors, high-voltage zones, turrets, and laser cannons. Inside, he creates comfortable living and leisure spaces, multiple themed bedrooms, and a self-sustaining water and power supply. Despite skepticism, he stimulates the renovation team with a 50-million-dollar bonus for three-day completion. He also orders extensive surveillance cameras and drones to secure the perimeter, setting the stage for a fortified refuge amid a dying world.