Two assistants, Lee Xiang and Kat, start new jobs at the financial firm Jones & Sunn. Lee Xiang is an earnest young man who naively enters the world of high finance with noble intentions. Kat on the other hand has a secret.
Kung and Kin's rivalry goes way back to the seventies when they fought over the same girl, who eventually became Kung's wife. Now they run competing phone stores right across from each other on Mongkok's busiest street, and stretch their minds trying to outdo each other with crazy promotions.
Yeung Yut Ching, an elite in the bodyguard world, is good at risk management and is the winning team in life. However, his unhappy childhood made him refuse marriage, and fate made him meet Yau Tze Ching, a clever woman who keeps breaking the rules of his life.
