Tong Dawei as痞子蔡 (Bum Cai), Sun Lihua as轻舞飞扬 (Gracefully Flying), Xue Jiajing as小雯 (Little Wen), Wang Haizhen as Bum Cai's ex-girlfriend, Xu Honghao as Ah Tai, and Gao Hao as Little Flying Man.
In the contemporary urban university campus, postgraduate Bum Cai has always yearned for a sincere love. But things don't go as he wishes; his repeated failures in relationships with girls have left him quite lacking in confidence. In contrast, his roommate and good friend Ah Tai is successful in love and freely plays among many girls.