Senior trainer Lin Feng died tragically and was reborn, returning to the story three days before the elf disaster broke out. Using future memories, he frantically hoarded supplies, seized the opportunity, and accidentally activated a mysterious survival assistance system. In this apocalyptic world where Pokémon has arrived and order has collapsed, Lin Feng uses careful thinking and cold judgment to conquer rare elves, build a refuge, and deal with crazy humanity and ferocious monsters. He not only has to fight against endless crises, but also uncover the truth behind the system and disasters. This is the ultimate test of intelligence and survival. Only the most cautious and calm people can become masters of doom.