This larkon can be divided into three arcs.

ARC 1: Episode 1 to 4

The first lifetime where a freshly England returned Thai prince Khun Chai Yai gets told that he is engaged to a Thai princess, Wilailayka, but ends up falling in love at first sight with a Lao princess, Jao Nang Noy, who is staying under his father's guardianship while she completes her education.

Obviously from the synopsis you all already know that Chai Yai and Jao Nang get married and Jao Nang dies on the same night of her wedding from being poisoned in their marriage house. Khun Chai Yai dies soon after as well from a broken heart, staying faithful to his dead wife until his last breath.

What I loved about this arc was the unwavering love and commitment Chai Yai had to Jao Nang. From the moment he fell in love with her, it was just her (granted he didn't even care for his fiancee even before he saw Jao Nang). He made it extremely clear to both of his parents that he was going to marry Jao Nang and no one else, and no amount of pressure from his mother made him give in even for a minute in his intentions. I liked that. A lot.

ARC 2: Episode 4 to the first half of episode 19

Ultimately this is where we see our FL after her rebirth, 20 something years later. Because of the war, her mother dies and she and her father (who is a chief police officer or something) move to the more prominent parts of Thailand where she earns herself a job as an English teacher in a school. This is where she meets the spirit of Khun Chai Yai who has been waiting all this while to see the rebirth of his love.

A lot of things happen in this arc:
1/ Our female lead , now called Rachawadee, remembers her past life
2/ Meets and falls in love with the spirit of Chai Yai
3/ Gets another engaged man fall completely in love with her
4/ Ends up being ordered by Wilailayka (who is quite old now) to live in her palace and serve her

Again, I'm sure you must all understand through practicality that a human and a ghost love story... just does not blend well. Therefore major changes had to occur for both of our main leads.

Personally, I thought this arc was stretched way too far then it needed to. A lot of the major plot points could have been dealt with a lot faster, there was no need for almost 16 episodes to take care of all the things that were taken care of. 10 episodes would have done perfectly without beginning to feel like a drag.

ARC 3: Episode 19.5 to 21

In this arc, Khun Chai gets reborn as our second male lead's son & Rachawadee gets reborn as her best friend's youngest daughter.

I have to say though, 2.5 episodes to wrap up a happy ending? I am disappointed. There was just not enough time to develop the story as much as it could have developed. They could have made a very beautiful arc if they had just managed to shift at least 5 episodes from arc 2 into this arc.

Still, we did get our happy ending . The over-all story left me with a warm feeling in my chest when I was done. Ofcourse, there was disappointment but there often is disappointment when it comes to me. I'm always unhappy about something in a drama. Regardless, the fact that this drama made me feel warm inside trumps all.

Overall, a drama that should not be slept on. Give it a go if you're intrigued !

P.S. Be prepared for the second male lead's wedding night scene. Trust me.
P.P.S. 21 episodes and we finally have a kiss between the main leads. Thank the directors!