The heroine Xiao Ai and Xun Zai, together with a group of rebellious art school girls born in the 1990s, are lost in the exciting life of chasing boys on campus, in the emotional loss of adolescence, in the wild nightclubs after getting involved in society, and are firmly lost in the process of becoming bad students step by step. There are laughter and tears, and it very realistically interprets why the post-90s generation is jokingly called: the brain-dead generation.