In a world ravaged by a mysterious virus known as RR, humans have been compelled to construct cities and fortify themselves behind walls in order to shield against mutated animals that have transformed into monsters. This era of tribulations and obstacles is referred to as the "Nirvana Period". In the midst of this turmoil, 18-year-old Luo Feng aspires to become a Warrior, a formidable combatant capable of defending humanity. Despite encountering hardships, Luo Feng diligently strives to unleash his potential and gains recognition for his abilities. He not only provides for his family but also bands together with other warriors to combat malevolent monsters and secure the future of mankind. Will Luo Feng and his comrades emerge victorious over the monsters and safeguard humanity in this dire doomsday scenario?