Oh my god...there are so many emotions running through my brain I can't even begin to explain but I'll still try.
First of all the story of this lakorn is pretty good but a total mind f*ck because initially all the different characters are introduced and there are a lot of characters with 50 shades of personalities. After awhile I understood who was who and their inter-relationships (cause that's hella messy). It's got some elements of the lakorns like kidnapping the FL, plotting love rivals and evil family members but also lacks some aspects (for a period drama this does not have as much manhandling of the FL by the ML as usually happens which I appreciate).
So the basic storyline is the Rattanamahasaan house (I'm gonna refer it to as the Ratt house/family) is like this wealthy and prestigious household. The Madam Ratt adopted this kid Saan who was an orphan of their close family friend and raises him with her own 2 kids. Now when he grows up he falls in love with a girl not accepted by Madam Ratt and gets kicked out. Now years later she has 8 grandkids- 2 from her deceased son named Lak and Nit and 6 from her daughter Sajee named Pong, Pin, Pan and 3 other little kids who are not really relevant to the story. Madam Ratt send all 5 of her grown up grandkids and her daughter-in-law Ying (Lak & Nit's mom) to bring home Massaya, her adopted son Saan's daughter. The rest of the story revolves around Massaya and Lak as they get familiar and later fall in love.
I mainly watched this drama because I love both Mik and Mookda. Most of the other actors were relatively new to me but they all nailed their performances.
Massaya was well portrayed as the innocent, sometimes naive but kinda headstrong girl. Some of her decisions were very frustrating like her rebelling everytime she was asked to do something or even when she was being abused by her grandmother she wouldn't leave instead of endure it (even when she left it was because of Lak).
Lak's character was okay. I don't think I would have had a problem if he actually ended up with Chom (since she was a good person at the start) but as the episodes went by it became obvious that the main reason he was dating her was more because he was initially attracted to her good personality, unlike with Mas for whom he had fallen for at first sight.
Chom's character was going steadily nice until people started poising her and she literally devolved. You can see her nosedive into a cliff despite various other people trying to save her. She misplaced her anger (like half of the other characters in the show) and instead of going after Lak she tried harming Mas. I liked that she went back to how she was before during the end of the series.
Pong and Pan were similar characters. Both of the siblings got incited by their mother to behave badly. In Pan's case as soon as she distanced herself from her sister and mother she improved whereas with Pong he gradually realized that the hate had made his family go as far as committing crimes and he kinda sobered up. The final point in his redemption was when he got acknowledged by Madam Ratt. I didn't really like him pairing up with Chom because while he wasn't the best person at first and Chom was pretty good initially, Chom treated him like sh*t (she literally told him that him and her was impossible so he might as well help her destroy Lak & Mas's relationship to get Lak back). I feel he could have done better but whatever.
Pin was also a conflicting character but among all her siblings she was the most like her mother and also the most influenced by her.
Khun Ying's character was basically Madam Ratt's puppet. Whatever she was told to do she simply did it even if it conflicted with what she wanted.
Tan Chai is probably the best wingman in Thai lakorn history ever. Whatever problem Lak had Tan Chai's immediate response was "I think I can help you". Seriously the best character in the series.
Nop was basically collateral damage. I mean I agree that he and Mas were not a good fit (they both seemed very childlike to be together) but they didn't have to play him like a fiddle.
Madam Ratt was the worst character followed by her own daughter Sajee. I wondered as to how Sajee turned out to be so b*tchy and entitled but later realised she was just like her mother. The only difference between the two was that Madam Ratt had the power and money. Other then that they were both classist, selfish and highly manipulative. Sajee was definitely better because she told her enemies that she hated them and then attacked whereas Madam Ratt maintained a sweet facade and then manipulated others to do her bidding.

I was a bit unsatisfied with the ending cause they offed the grandma (which seemed unnecessary), put Pong and Chom together (as stated I didn't like that), did not put Nop with anybody (I felt like he Pan gelled together) and showed 5 years of separation between Lak and Mas which ended with just a lousy reunion instead of like a wedding or something.
Anyway it's still a good drama so I would definitely recommend it.