Tong Feiling, a perfect-A student who is loved by her teachers, is preparing to study abroad after graduating from high school. Her personality is so good that she can completely tolerate her unscrupulous best friend Shen Xinyao. Because what happened on the day she traveled through time deeply stimulated her, this time she created: a generation of evil girls, Kikumaru Feiling, who only knows how to shoot gangsters with guns...