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

Zhu Qiao was reborn and returned to the pre-apocalypse. There are still three years left. The end of extreme winter is coming. The sun will slowly dim and the temperature will gradually become colder until the world completely plunges into darkness and ice. Zhu Qiao uses the small world in his mind to start cultivating immortals, making plans in advance, hoarding materials, and building underground fortresses, so that he can be alone when the apocalypse comes.