My Rolling Fortress in a Dying World

Vera Thorne is reborn to the day of her convocation, just before the dinosaur apocalypse. Framed by campus belle Mia Ruth in her past life and doomed to become dinosaur food, Vera refuses to repeat history. She secures Raptor Cave with a 400-million-dollar loan and rebuilds it into a fortress immune even to nuclear strikes. When her system activates, she tames pterosaurs, T-rexes and brontosauruses to forge a dino army. Mia, reborn too, repeatedly allies with violent criminals and even pledges to Cyan Corp to command mech-dinos and seize Vera's home. Vera counterattacks, conquers the apex predators and, in a final brutal strike, kills her mortal enemy. For seven years she returns dinosaurs to their era. Just as humanity begins to rebuild, temperatures plunge to -70 degrees Fahrenheit: the Glacial Age arrives.