Khun Phi Jao Kha... Dichan Pen Han Mi Chai Hong

Through a dream-like incident, Nithra travels back in time to the era of Rama III into the body of Boonta, the top girl at Mae Faeng House. This is real life, though, and Nithra has to save herself from being forced into sex work while coping with an unfamiliar time period. At the same time, she somehow gets involved with a murder case and Luang Thukkharat, or Chai, who works for the police department.
(Source: Thai = naiin.com || Translation = MDL)
~~ Adapted from the novel "Khun Phi Jao Kha... Dichan Pen Han Mi Chai Hong" (คุณพี่เจ้าขา...ดิฉันเป็นห่านมิใช่หงส์) by Fan Oerahoei (ฝันเอ้อระเหย).