Escaping the Apocalypse: From Exoskeleton Backpack to Gundam

The apocalypse arrived, and the myriad races invaded. Fang Zhen acquired a super backpack System that could devour parts and evolve without limit. From a piece of scrap metal to a powered exosuit. From a beat-up car to a land battleship. Everyone thought Fang Zhen was armed with nothing but junk, until the day the gods descended. I activated my backpack and transformed into a giant robot.