Its about couple who broke up due to miscommunication and fate brought them back together, giving them second chance to rekindle their relationship.
Khun Chai Pawornruj is the prequel of Poncheewan. Cheewan is actually the daughter of Kratin, whom Pawonruj is supposed to marry but instead he married Wanrasa, his childhood friend.
Dhevaprom: Jaipisut is the story of Khun Chai Ronaphee and Piangkwan's son. This story is set around 20 years after Khun Chai Ronaphee's story and their pursuit of finding peace with the Dhevaprom.
Dhevaprom: Kwanruetai is the sequel of Khun Chai Phutthiphat, in which Khun Chat is the son of Khun Chai Pat and Krongkaew. Their love story is almost similar and since the director is the same (Paajaew), I'm guessing the viewers are going to have the same fluffy feeling. The FL is different, while Krongkaew is soft and elegant, Tai is wild and tomboyish but that trait is what makes her character so interesting and cute!