In an apocalypse overrun by zombies, most of humanity has been infected and turned into the undead. Social order has collapsed, and resources are desperately scarce. In her previous life, the protagonist was betrayed and framed by someone she trusted. Now reborn with a System and a pocket dimension, she plans to take revenge, protect herself and her pets, and live a comfortable life. In the apocalypse, she also does her part to help rebuild the country.