The Sun Goes Out: I Build an Underground Fortress to Cultivate Immortality

Zhu Qiao is reborn three years before the apocalypse. The extreme winter apocalypse is coming. The sun will slowly dim, and the temperature will steadily drop until the world is completely plunged into darkness and ice. Using the small world in her mind, Zhu Qiao begins cultivating immortality, preparing in advance, stockpiling supplies, and building an underground fortress. When the apocalypse arrives, she'll reign supreme.