Seo Yun was a top student at an elite prep school, balancing academic pressure with her aspirations of achieving greatness. When the apocalypse shattered her world, she was forced to leave behind the safety of structured education for the chaos of survival. Although young and burdened by fear, Seo Yun has an indomitable will to protect what little hope remains. Her SCAR-L rifle, salvaged from an abandoned military convoy, has become her lifeline.