My Rolling Fortress in a Dying World - Episode 3

Three days after completing his bunker, the protagonist discovers a flaw: if the mountain is bombed, he remains vulnerable. Suddenly, a Dino-Taming System activates, allowing him to tame dinosaurs and upgrade his shelter. With this new defense, he prepares as the apocalyptic meteor strikes. Watching chaos unfold on satellite TV, he sees dinosaurs returning through a space-time rift, devastating cities and military forces. While civilization collapses outside, he relaxes safely underground, confident that taming dinosaurs will secure his survival in the new world.