Jane and Lalisa were born on the same day and are step-siblings. Their father died while serving in the police. Lalisa's mother treated Janenaree as her own child. Together with their younger brother, they formed a close sibling bond. Over time, Lalisa and Janenaree entered the SIC special training unit. Both were sent to train with Inspector Non. The young police officer who visited the Royal Thai Police and is admired by the commanding officers in the agency. Non chooses Darin as his new assistant. But, after the death of Darin during a chase with drug dealers, he gets dejected and resigns from the police. But Commander Kajorn still wants him to continue working. Amid the approval of Captain Kajorn, who saw the potential of Janenaree, sent her as Non's new assistant. But Lalisa misunderstands that her sister will take Non from her. Will both Janenaree and Lalisa reconcile or continue with rivalry? Will inspector Non be able to catch the main mastermind behind the drug cartel?

This is a synopsis of Majuraj See Nam Phueng , it’s a story of two close families that promised and agreed of their children’s marriage before they were born. Madam Lamphao is a head of Vichanee family , has two daughters , an elder daughter , Rojanasnai and youngest , Romereuthai . The elder sister already has a lover named Prawut Wuttisak .While Pathamakul family , Madam Preme has only one son , Paat Pathamakul . When the time came , and the youngest daughter , Romereuthai , learned that she had to marry a son of her mother’s friend , she was dissatisfied and opposed it , because in her opinion , Paat is a rustic , old-fashionable fool , so she forced her sister to marry him instead , but Rojanasnai also defied it since she had her lover.

Saichon is an islander living on Min island. One day, destiny leads him to find Fahlada, a 17-year-old girl lying unconscious on the beach. When she wakes up, he realizes that she lost all her memories. Saichon takes care of her and names her Nang Fah (angel) because he doesn't know her real name and she doesn't remember it. They fall in love with each other and live together.