After being trafficked and tortured for three years in Iron Dog Village, Gwen Shepard dies with hatred during the extreme cold apocalypse, reduced to nothing more than "two-legged sheep." Reborn one month before doomsday, she avenges herself by killing her tormentors and joyfully returns home seeking help, only to be betrayed by her own parents and brother and thrown into prison. The moment she steps into Unit 404, global temperatures plummet catastrophically, and the frozen apocalypse arrives right on sche
