Long Ma is a tennis prodigy who garnered 4 successive victories at the American Junior Tennis Tournament. Like his father, former professional tennis player Long Zheng Nan, Long Ma possesses both top-notch skills and deep passion for the sport. Upon returning to his homeland, he attends the distinguished Youth Academy and quickly secures a spot as a regular member of its famous tennis club after beating out numerous upperclassmen. With each match towards their ultimate goal of winning the nationwide Junior Tennis Championships, Long Ma and his teammates grow as players and as friends.

The drama is told in three separate folklore stories about love, lust, vanity, greed and selfishness.

{Changing Pins} - Male and female fraternal twins fall in love with different men with the same appearance. The older male twin has an homosexual affair with a Prince of the Liao Kingdom, while the female twin falls in love with a poor scholar.

{Judge Lu} - A poor scholar has an affair with a courtesan that resembles his wife.

{Chasing Fish} - A scholar becomes the object of affection to a fish spirit and human girl with the face.

Lu Yue Er is a cute 17-year-old city girl who is hard-working, courageous, and kind. She's also optimistic, responsible, and easy-going. Yue Er has strong principles, for which she isn't afraid to suffer and is as tenacious as 'wild grass'.

Hua Yi Nan is the handsome 20-year-old Lord of Huajian. While popular among the people, he has an unexpectedly dark personality.

Natsu Kamijo (Kyoko Hasegawa) lives in company housing. One morning, she hears a rumor from the other housewives. The rumor is that Rie Komaki (Naho Toda), who is friends with Natsu, has left her husband and son for her boyfriend. Natsu believes that family is more important than anything else, finds the rumor difficult to believe. Natsu receives a phone call from Rie Komaki. Rie tells Natsu that she now feels faithful as a woman and her tone is very bright. Ryu Saeki (Ryo Narita) is a young man that moves in downstairs from Natsu. Ryu works in the same department as Natsu’s husband Yoshiyuki (Shingo Tsurumi). Natsu develops feelings for Ryu.

A female surgeon who has practiced medicine abroad for many years returns to China. She is appointed as the director of the Heart Center of Ankang Hospital where she establishes a critical illness team and heads the project to develop artificial hearts domestically. Most people could not accept that Tang Jia Yu has come out of nowhere to become their boss. Nonetheless, she kept on proving herself through a series of difficult operations to conquer her subordinates one by one. As the chief surgeon, Jia Yu has come to develop a good rapport with anaesthesiologist Ye Yi Ming from the many times that they've worked together on the operating table. In the meantime, the operation for the first patient to receive an artificial heart turns out to be a failure. The sudden return of Jia Yu's ex-husband has prevented Jia Yu and Yi Ming's relationship from taking a step further. A proposal for a cooperation with foreign equipment manufacturers is being brought up again, thus pulling the plug on the R&D for artificial hearts.

After experiencing double troughs in her career and love life, Jia Yu has no choice but to travel far to areas with high incidence of congenital heart disease. Through every operation, she gradually regains her love for surgery and the confidence to return to the hospital.

“The Mermaid Prince: The Beginning” will take viewers back in time to Woo Hyuk’s high school days in order to uncover a secret. As opposed to the mysterious, dreamy Woo Hyuk that viewers saw in the original “The Mermaid Prince”, Moonbin will be playing a far more mischievous teenage version of the character in the upcoming prequel.

With its high school setting, the drama will also portray an entirely different kind of romance from that of the original series. “The Mermaid Prince: The Beginning” will tell the love story that ensues when Jo Ara, a high school student who decides to give up on dating because she doesn’t believe in love, ends up meeting Woo Hyuk.

Yoon Gun is a guy that looks cold on the outside but is actually a romantic at heart and only has eyes for one person.

Chun Ji Ae and Yang Bong Soon are high school classmates who did not have the best relationship with each other. Ji Ae was the most popular girl in school whereas Bong Soon was the girl that was always made fun of. Years later, their roles are reversed as Bong Soon's husband, Han Joon Hyuk, is very successful whereas Ji Ae's husband, Ohn Dal Soo, is just an average company worker. Things get complicated when Dal Soo starts an extra-marital affair with his boss's wife, Eun So Hyun. How will Ji Ae react to this?