Rene Liu Ruo-ying is a Taiwanese singer-songwriter, actress, director and writer. In the Sinophone world, Liu is widely known by her affectionate nickname "Milk Tea". Her music often focuses on love stories and has built an image around herself as a single woman. She is known for her mature, professional, urbane, single woman persona.

Us and Them is a 2018 Chinese romantic drama film directed by Taiwanese singer-actress Rene Liu in her directorial debut and produced by Zhang Yibai. The film stars Jing Boran and Zhou Dongyu, and was released on April 28, 2018. The film explores the relationship between a man and a woman who share the same rural hometown and try to find personal and professional fulfillments together in Beijing in the face of economic, social, familial, and romantic adversity.