Joking Around in the Apocalypse: I Picked Up a Cute, Cold Alien

A certain nobody of a woman is at her wits' end. She may be the heroine of an apocalyptic thriller about transmigration, but why wasn't she the one who transmigrated? And the person who did is so mysterious. Though she lacks the ability, she has an extraordinary curiosity and determination. She flees, investigates, and gives chase, only to realize when she turns around that she's already trapped. But with every step, she draws closer to the truth. It turns out that behind this apocalypse, with zombies everywhere, giant trees piercing the sky, and black and red rain falling in turns, lies an astonishing cause!