Rak Sut Plai Fah

Rak Sut Plai Fah (Love at the Edge of the Sky):
Mae-son, an ambitious young woman from the Ceon hill tribe who yearns for city life, has been living in Bangkok since high school along with her fellow tribeswoman, Mae-dae. To hide their Ceon identity—fearing it might cause them to be ostracized from urban society—Mae-son changes her name to Marnfah, and Mae-dae changes hers to Marisa. Both women fully dive into their urban careers. Marnfah works as an agile and trendy freelance creative for The Spectrum Agency. Meanwhile, Marisa, who dreams of having her own music album, works as a regular singer at a pub owned by Phet Rung, a former folk drama actor. With her charming voice, Marisa draws a packed crowd every night.
When the election season for the chief of Mon Fah Ngam arrives, the heads of the five villages—Plai Fah, Lom Fah, Ton Fah, Ing Fah, and Kiang Fah—must compete. The elected chief represents the local people in dealings with government officials and businessmen, and leads traditional activities. The winner is decided by accumulating points through a grand, fun-filled sports competition.
Meng Sueng, the head of Kiang Fah village, is deeply dissatisfied with the current chief, Kang Se from Ing Fah village. Kang Se is a cunning man who uses all sorts of dirty tricks to monopolize the chief position year after year, without ever benefiting any village other than his own. Determined to replace him, Meng Sueng consults the village's guardian spirit (Pee Fah) to see if Kiang Fah can win this year. The spirit prophesies that they will only win if a person with an 8-pointed star scar on their shoulder comes to help them.
Unsure of how to find this person, Meng Sueng goes down the mountain to consult the district chief and spots a picture in the sports section of a newspaper. It shows Thutthep, wearing a sleeveless sports shirt, with the exact scar the spirit described! The district chief reveals that Thutthep is a former national track athlete living in Bangkok. Meng Sueng decides they must get Thutthep to train their village's athletes, and the best person to track him down is his own daughter, Mae-son (Marnfah).
While the two girls are enjoying their city lives, they receive an urgent letter from Meng Sueng demanding they return to help the village win the election. Unwilling to go back, they ignore it. Impatient, Meng Sueng walks across another mountain just to call his daughter. When Marnfah tries to make excuses, Meng Sueng threatens her: "If you don't come up here, I will go down to Bangkok and expose you in front of your company as a hill tribe girl!" Terrified of her secret being outed, Marnfah reluctantly takes a leave of absence to complete the mission, enlisting Marisa's help to find Thutthep Chachatan.
Marnfah suddenly remembers Thutthep as a sports shoe model she recently argued with because of his apathetic, lifeless attitude during a photoshoot. She strongly doubts that someone so unenthusiastic can coach anyone. However, Meng Sueng insists she follow the spirit's prophecy, forcing her to accept the task.
Meanwhile, Thutthep is deeply depressed. After a severe accident ended his racing career, he feels like a failure, wanting to hide from everyone and escape his current life. However, his mother, Khunying Pa-oon, constantly tries to push him back into the spotlight by getting him commercial shoots and trying to force him to become an international coach for the ASEAN Athletics Association—something he has absolutely no interest in.
How will the chaotic love story between a depressed high-society young man and a city-dwelling hill-tribe girl unfold? Tune in to find out the conclusion of this romance in Rak Sut Plai Fah.