Doomsday Rebirth to Dominate the World

Returning to the week before the apocalypse, what should I do? Kill zombies, collect crystal cores, enclose the land, grow vegetables, and build a base! Is this still the end? This is simply the life I yearn for! The first few chapters are excessive and will soon get to the point. Before reading, please read a few brief introductions related to the work. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.