The 16-year-old bastard, Vivien, is captivated by the Vestails Academy, a boarding school that looks more like a prison because of the strict discipline of girls. She’s trying to keep everything for her and not get involved for anyone, no matter what happens. But things change when she gets to meet Sophia one day – her ex-girlfriend who betrayed her some time ago. Together, the two girls venture into a dangerous mission to discover the terrible truth behind their imprisonment. Soon, girls are put in a situation of being forced to rescue or die trying.