Rebirth After the Doomsday: Start by Picking up Trash and Stocking up the System

Lin Mo was reborn six months before the end of the red fog. His parents died and he was penniless. When he was surviving by picking up garbage, he borrowed a strange iron key to activate the doomsday survival system. He relies on the system to stock up on supplies and build safe houses. When the apocalypse comes, he forms a team to fight the crisis, find the key, uncover the secrets of the apocalypse, protect the base, and seek the survival of mankind.