A mysterious virus, RR, emerges on Earth, triggering a catastrophic event that leads to the mutation of animals into ferocious beasts that launch massive attacks. To survive the impending doom, humans create cities fortified by walls, marking the inception of the "Nirvana Period" - a time of challenges and turmoil. Amidst this harsh lifestyle, humans undergo physical and martial evolution, ultimately producing the elite "Warriors," a title coveted by Luo Feng, an 18-year-old aspiring to join their ranks. However, his path to becoming a warrior is disturbed when a monstrous assault interrupts his college entrance exam, forcing him to face a life-altering decision.