Ubat Rak Ko Sawan

Chalam (Phathit Pisitkul), the son of Village Headman Phrao (Oliver Bever), graduated as a prospective ship captain. However, after clashing with top executives in his organization, he was framed for a disciplinary breach. Compounding this with a heartbreak—when his longtime girlfriend Lookpad (Arisa Will) breaks up with him on the day he proposes in order to date Dew (Sira Rattanaphokhasathit), a famous, flirtatious photographer who she believes can make her famous in the entertainment industry—Chalam turns his back on everything in the city. He returns to being a saltwater guy, helping Headman Phrao tend to the coconut orchard and running a small fishing business. Chalam claims his father's small island as his personal territory, living a solitary life there with his close buddies: Hoi (Nattapon Rattaniphon), a coconut orchard worker boy, and Uncle Po (Kriangsak Riantong), a gambling addict. They often go out to sea together, and it is widely known in the village that Chalam's diving skills are unmatched.
In Bangkok, Praewa (Karnklao Duaysianklao) is forced to marry Itthi (Atthachat Siphakdi) to please Phadet (Chuchai Busarakamwong), the grandfather who raised her since childhood after her parents died in a car accident. Itthi is the son of Akara (Pattana Tohchalee), a politician who has been close friends with Phadet for a long time. Praewa and Itthi have been betrothed by their elders since childhood. Praewa only feels for Itthi as a friend or older brother, but Itthi was raised to be strictly obedient to his parents and prioritizes his family's reputation, so he doesn't refuse the marriage. As the wedding day approaches, Praewa runs away, leaving an apology letter to Phadet stating that her whole life has followed the path her grandfather chose, but for love, she wants to choose her own path. The wedding is abruptly canceled. A furious Phadet sends people to search for Praewa everywhere, but neither he nor Itthi can find a trace of her.
Praewa sneaks out of the house, taking a taxi and falling asleep. She narrowly escapes being assaulted by the wicked taxi driver, unknowingly dropping her wallet in the process. She then escapes by hopping onto a truck carrying migrant workers, not caring where it's going as long as it's far from Bangkok. Exhausted, Praewa falls asleep again and wakes up at a migrant worker checkpoint, not knowing where she is or what province she is in, as she has always been raised like a little bird in a golden cage.
The police assume Praewa is an illegal immigrant. She denies it but has no proof, just realizing she lost her wallet. The police don't believe her and are about to take her to the station. Praewa runs for her life again until she reaches the pier where Chalam has parked his boat. She hides inside, with the police hot on her trail but unable to find her. After buying necessities, Chalam immediately sets sail back to his island. Along the way, Praewa emerges from hiding. Chalam makes a fuss, assuming she's an illegal immigrant fleeing the police, and decides to turn the boat around to hand her over. Praewa threatens to jump into the sea if he does. When Chalam tries to grab and tie her up, she resists, loses her balance, falls into the sea, and hits her head on a rock, falling unconscious. Chalam jumps in to save her and takes her unconscious body to the island to recover, while her backpack and belongings are lost to the sea.
Praewa wakes up at Chalam's seaside house and realizes she is on a remote island. Thinking this is a perfect hiding place from her grandfather, she fakes amnesia, telling Chalam she can't remember who she is or where she came from, only vaguely recalling someone trying to kill her. She begs Chalam for shelter until she regains her memory. Chalam reluctantly agrees to help. Hoi and Uncle Po, who know the secret, help cover it up and give Praewa a new name, "Rung" (Rainbow), inspired by a rainbow over the ocean horizon.
Meanwhile, Dew and Lookpad are having relationship issues because Lookpad catches Dew secretly having an affair with Namtan (Amina Pinit), a new model. Back at the village, Headman Phrao often goes to flirt with Mae Mali (Rachaya Rakkasikorn), a widow who owns a beachfront restaurant and has a tomboy daughter named Yiwa (Prae Emery). Phrao faces competition from Sia Phichai (Blew Jakthip), the owner of the village's large fish market, who is also courting Mae Mali. Every time the two older men clash, Yiwa and Aunt Juab (Viyada Umarin)—Uncle Po's wife and the restaurant's main cook—act as referees. The appearance of Praewa disguised as Rung, a beautiful ordinary girl, causes quite a stir in the community. However, due to the villagers' friendliness and Headman Phrao's kindness, Praewa decides to settle down there and find work, with Chalam reluctantly keeping an eye on her. Sympathy and love begin to blossom in their hearts, but Chalam tries to suppress his feelings and act indifferent toward Praewa, as his past heartbreak makes him reluctant to love again.
Yiwa supports Headman Phrao over Sia Phichai to court her mother because she secretly has a crush on Chalam, though Chalam only sees her as a mischievous little sister. The person who secretly likes Yiwa is Plio (Surasak Chotinnawat), a good-humored young man who is a 3-time champion coconut picker (beating even monkeys). Plio and Yiwa are constantly bickering. With Headman Phrao taking the lead in courting Mali, a frustrated Sia Phichai encourages Chawee (Apaporn Nakornsawan), his spinster sister, to aggressively pursue Phrao. Chawee has secretly loved Phrao since she was a teenager; even after he married, had a child, and became a widower, she never gave up hope. Another person Chawee adores is Somchai or Sia Noi (Sittichai Pabchompoo), Phichai's son from his first wife. Somchai is a good-for-nothing who spends his days gathering his motorcycle gang to roam around, acting like a rich brat all over the beach. Though mostly harmless, he is a nuisance to the villagers. Currently, the person Somchai is crazy about is Rung.
Besides owning the large fish market, Sia Phichai is an antique collector and dealer, especially of treasures found underwater. Wherever there are rumors of sunken treasure, Phichai takes his men on boats to dive and search. He is particularly obsessed with a pirate treasure, a legend passed down from his grandfather, said to have been hidden on a nearby island by pirates fleeing the Portuguese navy. Before dying, Phichai's father gave him a half-piece of an ancient metal mask, calling it the key to the treasure's location, and told him to find the other half. When both pieces are combined, they will reveal the pirate's hidden treasure. Phichai has been searching for the other half since his youth but has yet to find it.
Phichai isn't the only one who believes this. Uncle Po is another firm believer. Though he doesn't know the deep details like Phichai, he believes with all his heart that pirate treasure is hidden in the sea, and that the spirits of the pirates roam there, waiting to return to their wealth. Meanwhile, Headman Phrao calls an urgent village meeting upon hearing news that a group of pirates is attacking fishing boats and might be hiding nearby.
At the same time, Karim or Nai Yai (Yup Khan), the pirate leader, sends Po Yai (Lek Jaded), his right-hand man, and Chok (Yingyong Yodbuangam), his subordinate, to infiltrate Sia Phichai's fish market, planning to bring the gang in for a robbery. But when they see Phichai taking his men out to sea to search for treasure, they change their minds and aim for the treasure instead. Chok meets Chawee and takes a liking to her, continuing to work while hoping to win her heart. Phichai and Somchai are kidnapped by Nai Yai, who tries to extort the half-mask. With no choice but to surrender, Phichai realizes that he's no longer the only one searching for the pirate treasure; other groups are hunting for it too.
In the end, who will become the owner of the immensely valuable treasure? And how will the romance between Chalam and Rung end when Lookpad comes to Ao Kraben looking for Chalam, and Chalam discovers the truth that Rung is actually Praewa, a multi-billionaire heiress and the owner of the land on the island next to his? Follow the drama "Ubatrak Koh Sawan" (Accidental Love on Paradise Island) every Monday-Sunday at 6:30 PM. "Ubatrak Koh Sawan" will be broadcasting soon on Channel 7.