Cold Wave Doomsday: I’m Pregnant With the Doomsday God of War

In an extreme cold apocalypse, women are forcibly controlled and confined to the Tianyan Institute as refugees. In her past life, the younger sister, Su Qing, tried to run away but was caught and suffered terribly, while the elder sister, Su Wanyu, secured a job as a supervisor at the Tianyan Institute by handing over a basement rich in supplies beneath their ancestral home, avoiding the fate of a refugee. At the institute, a resentful Su Qing, now a refugee, killed Su Wanyu out of jealousy. When Su Wanyu opened her eyes again, she realized she had been reborn. In this life, Su Qing did not choose to flee; instead, she rushed to turn over the basement to secure a supervisor position for herself at the Tianyan Institute. At the same time, she framed Su Wanyu for trying to monopolize the basement, causing Su Wanyu to be locked up in the institute instead! Just as Su Wanyu was trying to find a way to escape, the fetus in her womb awakened. With the help of the fetus, Su Wanyu began her apocalyptic life of prison-breaking and exile!

Synopsis from DramaGo.