Rene Liu successfully delivers the complex role of Mi, who chooses to remain single rather than risking the slightest chance of being dumped. She loves her friend Nan more than anyone, yet she asks him to be her best friend instead of boyfriend. For ten years, he wishes her a happy birthday no matter how far they are geographically apart or who they are with. However, this year his greeting arrives 42 hours late...

Fang Zhen Dong is a patrolling officer in Beijing who one night meets the drunk Li Pei Ru while singing karaoke at the KTV place. Li Pei Ru is a real estate agent from Hong Kong who has vowed to make her fortune in the cosmoplitan Beijing, but is caught up in the complexities of life and ends up becoming a mistress of a married man.