I Traveled Back to Before the Apocalypse and Became Humanity's Savior

[Veteran returns to the starting village + supernatural abilities + road trip + “evolution” + mild horror + light ensemble cast + northbound team + lighthearted] The Source City arc begins at Chapter 100. In her previous life, Wen Sishian lived in a world thirty years after the catastrophe struck and served as captain of the investigation team at the Thirteenth Stabilization Zone's Defense Bureau. During a recovery mission targeting infected people within the country, she and a teammate ran straight into an escaping infected person. A knife plunged into her neck, killing her on the spot. When she opened her eyes again, she had returned to before the catastrophe, to the year 2060. In 2060, the catastrophe struck and a virus broke out. Ninety percent of living things mutated, and humanity lost 80 percent of its habitable territory. Vast stretches of land were overrun by “pollution sources.” Only by wiping out these breeding grounds of bacteria could the land be cleansed. The human survivors built high walls in remote corners of the world, clinging to life. Back at the starting village, Wen Sishian picked up her twin blades, shouldered her pack, and set off north for home with a group of rookie teammates...