A sudden drop in acid rain triggers the apocalypse. Wu Xu, a courier, luckily hides in an underground garage and accidentally binds the Turtle Breath Evolution System. The system can accumulate turtle energy by standing still or moving slowly, strengthening your physique and unlocking skills. In order to survive and find his parents, Wu Xu relied on the system to steadily become stronger in the ruins, tearing apart mobs, killing mutant beasts, and saving the orphan Xiao Yu and many survivors. From the underground garage to the temporary shelter, he faced predators, mysterious men in black and terrifying beasts, using "slowness" as his blade. In the crisis-ridden apocalypse, he accumulated strength while protecting his companions, and steadily moved forward towards the goal of building a safe home.
