Jay Chou is a soft hearted, mellow young man that is often fooled and used by women who only want his money. One night, he saved a young and sexy Kung Fu master, Ying Ying and she helped Jay recoup many of his bad debts and kicked his lousy girlfriends away. Surprisingly, Ying Ying is a maestro in gambling - mahjong, football betting and horse racing. However, Ying Ying suffered from amnesia, and could not remember who she was. Nevertheless, Jay plucked up courage to ask her to marry him and she agreed. On the night before their wedding, Ying Ying disappeared! Later, Jay finally found her and she is contending in the Asian God of Gamblers Competition and also had a fiancé named Henry. What was Jay to do?
| Actor | Role |
|---|---|
 Nick Cheung Ka-FaiJay Chou | Jay Chou |
 Natalie Meng YaoYing-ying / Na-na | Ying-ying / Na-na |
 Cheung Tat-MingEason Chan | Eason Chan |
 Danny ChanManu | Manu |
 Ben CheungLeo Ku | Leo Ku |
 Wong JingLung Tin Gau | Lung Tin Gau |
 Samuel Pang King-ChiHenry | Henry |
 Xing YuDragon | Dragon |
 Lee Lik-ChiBoss Kwan | Boss Kwan |
| YYedda Chao TongMandy | Mandy |
 Winnie Leung Man-YeeMimi | Mimi |
 Parkman Wong Pak-ManGambler | Gambler |
 Frankie Ng Chi-HungTriad Boss | Triad Boss |
 Chiu Wing-HoiNot listed | Not listed |
 Au Hin-WaiNot listed | Not listed |
 Jacqueline Chong Si-ManNot listed | Not listed |
 Courtney WuNot listed | Not listed |
 Andy Lee Do-YueGambling King of Asia | Gambling King of Asia |
 Jackson Ng Yuk-SueNot listed | Not listed |