Rebirth at the End of the World: Stock up on a Zombie King in Advance

[Doomsday zombies + rebirth and revenge + stocking up on supplies + system tasks + abilities + building a base] The apocalyptic zombies broke out. In the fifth year of the apocalypse, Jiang Yunsheng did not die from the zombies, but died due to double betrayal and frame-up by his best friend and a scumbag. Reborn before the end of the world, bound to the rebirth system, doing tasks to upgrade like crazy, taking revenge on the scumbag bestie in the face, leading parents to stock up on supplies, and even stocked up on a zombie king in advance...