With an Underground City in the Apocalypse, I Stockpile Millions of Supplies

[Apocalyptic construction + strong heroine + no male lead + heroine grows into her strength + no saintly do-gooders!] In her sixth year struggling through the apocalypse, Jiang Shengyue, a tenacious sickly woman, is imprisoned in a base’s basement and dies in a zombie attack. When she opens her eyes again, she’s back one month before the apocalypse! Faced with threats and coercion from her aunt and her family, she takes back her inheritance, sells her property, leaves the whole rotten bunch of them homeless, and then stomps on them while they’re down! Not enough money? She squeezes those scumbags for cash and stockpiles supplies on a massive scale! When the apocalypse arrives, Jiang Shengyue defies fate! She carves out territory and becomes the boss, killing anyone who stands in her way, whether god or Buddha, and thriving. Oh, sorry, she didn’t notice she’d already reached the very top of the apocalyptic pyramid. But why does this underground city have so many levels? And System, what’s gotten into you? While everyone else is starving and freezing in the apocalypse, one base has actually restored social order? And it serves three meals a day? Survivors: “Who said the lord is a killer? Open your eyes, you idiots! She’s our savior!” Jiang Shengyue: “No, no, that’s not me! I only wanted power and control over my own freedom. Becoming a savior was never the plan.” In the endless night of the apocalypse, Jiang Shengyue’s flickering spark becomes the last hope for this land. The heroine is physically weak at first and has vulnerabilities, but she’ll soon get better! Please give her some time to grow. Things will be explained later, too.