Start with a Black Iron Sword

This is a glorious era when divine soldiers descend, but it is also a dark era when all kinds of monsters appear in the world, and human beings are heading towards extinction. The leader of all ghosts, Chi Yuan, holds the third-ranked 'Weaver Angel' on the list of divine weapons. After breaking the gate of hell, the monsters from the eighteen levels of hell poured out like fierce water towards the hole in the iron wall. The day the iron wall is collapsed by the fierce water, the world will inevitably be destroyed. Mutated zombies, alien mechas, deep sea monsters, brainless giants, dark-winged angels... On Tianti Mountain, there is the Monument of Destiny, and on top of it, there is the Heavenly Palace, where all the gods watch with cold eyes. In just a few months, the only human land left was Wankui City, a defensive wall stretching for tens of thousands of miles, the last barrier. The world is like an Ai Ling who has been blind since birth, heavily enveloped in darkness. Is there any light in what you see?