Mizuki Konno, a typical high school junior, focuses on academics and fashion at Yanno Prefectural High School. Positioned among the popular kids, she unknowingly stirs jealousy within her peers of similar academic standing. Following a tragic accident on a field trip, the class divides into the living and the deceased, leaving five injured girls stranded. Amidst their animosity and a struggle for survival, they challenge the former social hierarchy, reshaping power dynamics beyond appearances.