Slaying Demons in the Immortal Pagoda

Beneath the Immortal Pagoda, humans coexist with demons and monsters. But as they wreak havoc across the world, humanity struggles to survive in a remote corner. Wang Xuanlin is a commandant on the first floor of the Immortal Pagoda. One day, he is betrayed and ambushed by demons and monsters. Fortunately, he obtains a Demon-Slaying System, which lets him claim the lifespan of any demon or monster he kills. By consuming their lifespans, he raises his cultivation and practices the Dao. With every floor of the Immortal Pagoda he climbs, he slaughters ten thousand monsters, striking terror into their kind.