Kupu matua Love Quadrangle

Because of a lost personal device, the lovely and childlike Fiona Ko Yat-Sze is brought together with her Prince Charming, a boy whom she had had a crush on since school days. Alan Shum Long is the Prince Charming, who, after graduation from school, lost touch with Yat-Sze. Later, Yat-Sze meets Nick Kuen Lik, who happens to be the long lost son of the mall's rich owner. The simple and honest Nick starts to like Yat-Sze. Meanwhile, another woman falls for Alan...

The ruthless Fong Chi-Lik suffers from congestive heart failure, and was fortunate to have the recently died Yiu Yat-San donate his heart to him. After going through heart transplant surgery, Chi-Lik's personality changes drastically; Chi-Lik turns into a good man with a caring attitude. But when Chi-Lik discovers Yat-San's "accidental" death involved him and his wife, he gets lost between love and righteousness, good and evil. Meanwhile, Yat-San's twin brother Yiu Yuet-San returns to Hong Kong to prepare for his brother's funeral and falls in love with his brother's girlfriend Yuen Siu-Kat. The plot thickens when Yuet-San finds out that his twin brother’s death was not an accident and begins investigating to uncover the truth.

Cheung Po-seng is a man with grandiose aims but puny talents, putting the seafood restaurant run by his father out of business. As Po-seng feels down-hearted, his close associate Kate Cheng, a female TV producer, remains steadfast with loyalty to him, fighting with him side-by-side all along. When a career woman Heidi Kwok returns to town to help her mother run the holiday home business, she attempts to woo the naive Po-seng to make his business go away. However, Heidi's first love, Ching Lai-wing, catches wind of her plan and refuses to see her succeed.

Daniel and Andrew are two playboys who are at odds with each other. Each of them has a mentor, namely Reno and Eros, who were also enemies and rivals in the past. Betting begins to get the same girl named Cleo, with the winner being named the number one playboy for the next ten years. Without them realizing it, Cleo is the twin sister of Dara, Daniel's household assistant, who secretly has a crush on Daniel.

Fifteen years ago, a young girl saved a young boy from drowning at a farm. Upon his rescue, they become friends and the two of them pray under the Star Apple tree together to wish for happiness for each other throughout their lives, and for them to meet again after fifteen years. But fifteen years later, circumstances have changed. The boy, Tao Si, is now a successful businessman who wishes to avoid his fixed marriage, while the young girl, Cao Kerui, has fallen for an orphan boy who grew up on the farm with her. Incidentally, the orphan boy is actually the boyfriend of Tao Si's future fiancé. How will these four people overcome these obstacles and realize that love can be found in the least expected places?