Gwei Lun-Mei (simplified Chinese: 桂纶镁; traditional Chinese: 桂綸鎂; pinyin: Guì Lúnměi, born on December 25, 1983) is a Taiwanese actress. She started her acting career in the movie Blue Gate Crossing (藍色大門) as Meng Ke Rou. Lun-Mei then appeared in a few more movies before she went on to gain more recognition in the movie Secret directed by Jay Chou, which Gwei acted as the female lead, Lu Xiao Yu with Chou himself playing the male lead, Ye Xiang Lun. Gwei more recently played in Girlfriend, Boyfriend, a coming-of-age drama in which three teenagers navigate their attraction to one another – well into their adulthood. Set partly against the sombre reality of Taiwan’s martial law period (1949–87) and partly against the newfound freedom that the once-oppressed protagonists are struggling to cope with, the film charts the tortured emotional lives of its three characters (played by Gwei, Joseph Chang and Rhydian Vaughan) over the decades.