Hong Kong's gambling champion Cool (Louis Koo) was once boundlessly glorious, specializing in a card-flying stunt that reputed the gambling world. In Asia, only Japan's Tetsuo (Yasuaki Kurata) is considered a worthy opponent to Cool. Cool is bent on defeating Tetsuo to become Asia's number one. To gain this title, Cool works hard to improve his gambling skills, but was framed by his god-brother Yeung Kwong (Ben Lam), who tricks Cool's girlfriend, Karen (Athena Chu), and marries her. Cool rushes into the wedding hall and falls into Yeung's trap. Karen sees through Yeung's scheme and while protecting Cool, she gets shot and becomes a vegetable as a result. However, since Karen is legally married to Yeung, Cool is unable take her away back to Hong Kong and Cool retires from the gambling world and opens a Chinese restaurant in Japan and everyday, Cool will secretly take a look at the unconscious Karen.
Several years later, an agile triad punk named Jersy (Nick Cheung) appears in Mongkok. Jersy idolizes Cool and always wanted to become the latter's disciple. His wish is never able to come true until one day, after he won a gambling match during a tour in Japan with his girlfriend, Banana (Christy Chung). When in Japan, Jersy happens to walk into Cool's restaurant where gangsters were causing trouble. Cool and Jersy work together to get rid of the gangsters and Jersy discovers Cool's identity and they become friends.
At the same time, Tetsuo is bent on battling Cool to prove that he is Asia's number one. However, Cool, who has no intention of re-entering the gambling world, rejects Tetsuo. Desperate for Tetsuo to battle Cool to execute his scheme, Yeung hires Karen's younger twin sister (Athena Chu) from America to lure Cool, and plans to kill them during their battle. Desperate, Cool breaks his vow and engages in a century battle against Tetsuo.
Andrew Saroch of Far East Films rated the film a score of 3 stars out of 5 and commented on the film's comedy as "sometimes amusing" and sometimes "crude" and calls the film "mostly entertaining."[1]LoveHKFilm gave the film a negative review criticizing the last of originality, citing " there isn’t much here that hasn’t been done before."[2]HKFilm.net rated the film with a score of 6.5 out of 10 and criticizes Nick Cheung's performance, the editing, but praises its production values and action sequences.[3]