Apocalypse: The Red Mist Is Man-Made

Betrayed by her own younger sister and her "good brother," she was pushed into a horde of zombies and died miserably. Reborn three days before the apocalypse breaks out, she frantically stockpiles supplies using her portable space—only to discover that the red mist is a man-made disaster, and that from the moment of her rebirth, she has fallen onto the chessboard of the mysterious "Boss" behind it all. — Description from novelcodex.org