Sky of Love

Xiao-jai (Leung) and Wen Tao (Zhu) have never met, but their friendship is maintained by voice via radiophones. As Xiao-jai finds herself falling in love with a man whom she has yet to see face to face, she is also shocked to discover that Wen Tao may be from the future, with the radiophone acting as a time machine that connects them. (official distributor synopsis)