Sapai Sut Khua Mae Phua Sut Sa

Sapai Sut Khua Mae Phua Sut Sa (Extreme Daughter-in-law & Sassy Mother-in-law): Sroi-inthanin has recently become a millionaire through her successful herbal business. However, her greatest heartbreak is her eldest son, Theeranit, falling in love with a "poor country girl" named Thansai. Thansai works as an agricultural show host at Theeranit's production company, recommended by his younger brother, Theeratham.
Sroi-inthanin’s stylist, Chai Diao, and her high-society friend, Wimala, constantly look down on Thansai, labeling her a social climber. They are unaware that Thansai’s family is actually "Old Money" nobility who chose a simple life on a farm in Nakhon Nayok to escape the city. When Theeranit introduces Thansai, Sroi-inthanin insults her so harshly that Theeranit declares he will marry her regardless. To force his mother's attendance at the wedding, he jokingly threatens to marry a transgender makeup artist named Ma-mai instead.
Sroi-inthanin eventually agrees to the marriage on the condition that the couple lives with her, secretly planning to break them up. She brings in Kulthida, Wimala’s niece, hoping to replace Thansai. Unknown to her, Kulthida is a troubled woman being used by Wimala and Chai Diao to seize the family fortune. Thansai discovers this plot and decides to "reverse-trap" them by having Theeranit pretend to be infatuated with Kulthida.
The plan escalates: Kulthida takes over Thansai’s hosting job but fails miserably due to her lack of skill, eventually exposing her own scheme in a recording captured by Theeratham. During a trip to the countryside, Thansai and her family rescue Sroi-inthanin after she gets lost in the forest. Later, Thansai nurses her back to health after a bout of food poisoning, causing Sroi-inthanin's heart to finally soften.
In a desperate final move, Wimala and Chai Diao try to frame Theeranit by drugging him and placing him in bed with Kulthida. Thansai uses this to "test" Theeranit’s love, leading to a massive misunderstanding where he nearly marries Kulthida to take responsibility. Kulthida begins acting like a tyrant toward Sroi-inthanin, who is shocked by her true nature. At the wedding, Wimala tries to blackmail Sroi-inthanin over a fake pregnancy, but Theeratham plays the recording of their confession, leading to their arrest.
Sroi-inthanin travels to the countryside to apologize and is stunned to find that Thansai’s family owns the vast estate. Thansai explains she wanted to be loved for who she is, not her wealth. Finally, Theeranit fakes a "memory loss" condition to test Thansai’s devotion one last time. When she vows never to leave him, he reveals the truth. The story ends happily with a double wedding for Theeranit and Thansai, alongside Theeratham and his partner, Som.