The End of the World: I Build a God-Level Fortress by Recycling Waste Products

[Doomsday + Rebirth + Gou + Recycling of All Things + Black Technology + Stockpiling + Infrastructure + Blackening the Virgin of Revenge] The end is coming, a global crisis. In his previous life, he was pushed into the corpse wave by his green tea girlfriend and his neighbors because of his kindness. Reborn and returned to three days before the end of the world, awakening [all things recycling system]! Bite! Recycle scrapped graphics cards and get: Intelligent Defense Fire Control System! [Ding! Recycle discarded steel bars and obtain: titanium alloy reinforced walls (defense +999)! [Ding! Recycle rotten beef and obtain: high-energy gene enhancement potion! The scrap copper and iron in your eyes are the best materials for me to build a god-level fortress! The electronic waste in your eyes is my supreme treasure in exchange for black technology! When the person who harmed me in the past was kneeling outside the door, begging for a hot soup, I was sitting in the shelter with a constant temperature of 26 degrees, cooking hot pot, watching them behave in such ugly ways, and chose to lock the door! "Sorry, dogs and bitches are not allowed in my shelter!"