Underworld Search, Loot, and Escape: An Upgradable Secure Case from the Start!

[Strange Invasion] + [Loot, Shoot, Extract, Escape] + [Ruthless and Decisive] + [Overpowered, Pure Thrills] Yang Qi, known as the godfather of the rags-to-riches genre, accidentally transmigrates to another world. Ten years ago, countless strange entities and bizarre, evil creatures invaded, causing mass casualties! Humanity’s modern firearms were nearly useless against these entities, bringing human civilization to the brink of extinction. Only scattered sparks of life remained! But in the midst of despair, this world suddenly merged with the rules of a game, granting all humans the ability to explore other worlds! These included places such as the underworld from Xia Kingdom legend, as well as hell, the netherworld, and other realms from Western mythology! With weapons, armor, and all kinds of items found while exploring the underworld, humanity finally gained the ability to fight the strange entities and began reclaiming the regions they had overrun! Yang Qi joins the GTI organization and awakens a red-tier, evolving secure container from the start! He charges into the Hall of the Judge, pulls out the underworld’s top-tier red loot, the Book of Life and Death, and makes a clean getaway with a haul worth tens of millions! Then even more powerful instances begin appearing one after another: the Journey to the West, the Heavenly Court, the Great Thunderclap Temple... From then on, Yang Qi slays strange entities and sweeps away evil spirits, rekindling the fire of hope for humanity in the apocalypse! And the source and truth behind this strange apocalypse gradually come to light!