Red rain fell suddenly, zombies were rampant, and modern civilization collapsed overnight. In the apocalypse, the weak are allowed to be bullied, and women are reduced to vassals. {Su Jin} awakens with the memory of his tragic death in his previous life. He does not cling, depend, or bow down. He hoards goods crazily, builds hard-core equipment, hunts zombies, and tears evildoers to pieces on his own. She doesn't form a love team, doesn't embrace anyone, and carves out a way of survival on her own in the wasteland, protecting the weak, breaking prejudices, and building a pure land. With the bones of a mortal woman, she stands at the top of the apocalypse and lives as the hardest light in the world.