Adapted from the novel Blade Vs. Blade by author Ha Decao, director Lu Yue's controversial tale of teenage delinquency concerning the crumbling social structure of a typical Chinese high school.
Spiky haired, blade-wielding tomboy Feng (Liu Xin) has a thing for pretty Taotao (Duan Bown), a girl whose home life is a wreck thanks to her violent, abusive father. Lately, Taotao has been shifting her attentions towards Eva (Luo Yadan), a studious young girl with only one leg.
Meanwhile, as Feng's friend Jojo (Wang Jing) contends with how to handle a rather inappropriate crush, newly arrived student Bao (Zhao Mengqiao) attempts to establish his authority in the hallways by making life a living hell for well-to-do classmate Ali (Chen Keliang).
Before long, Ali and Feng have formed an unlikely alliance and everything starts to change.