Disclaimer, this is a super messy review.

This series, by far, has made me cry the most out of any other series with only its 8 episodes. Ohm and Singto's acting were just so perfect that when they cried, I cried. The scene that made me cry the most was when Ohm was conversing with his mom and telling her... well, you know (minor spoiler). I myself have also had the same situation so I know exactly how it felt. Ohm's acting in that scene was just so realistic and so relatable that I just couldn't fight back myself from crying. Even though some of the scenes are very sad, there are just the right amount of sprinkles of comedic relief after the scenes that really made me laugh and be happy again from getting sad emotions. The thing that makes this series unique from many other Thai BLs (plz don't attack me if I'm wrong) is that both Than and Mes are gay and not bisexual. This would mainly attack the BL concept of, "I don't like any other guys, I only like you." This really just doesn't sit well with me (>>OPINION<<). The relationship of Than and Mes is that both of them has had only one relationship (Correct me if I'm wrong). I really just don't like it when any of the main roles in BLs has had many relationships (unpopular opinion) because it feels like it doesn't make the relationship feel special. I understand that it's like, "I've dated many, but none of them have worked out for me in my life until I met you," concept, but I really prefer the, "You are my first love and my love forever," or, "I've dated only once to see if I like girls and when I met you, I realize you are the one I want to spend the rest of my life with," (once again, unpopular opinion).
The main plot of the story is so fascinating and so captivating, I was super impressed with how they managed to make the whole thing play out so well. The thing about the very first scene with Singto was just so indescribably sad. The way it starts out with music, him being at peace, and then an abrupt drastic change of the mood that partly explains how he became a ghost. I also can't count how many times I got goosebumps from this whole series because of just how beautiful everything was. The use of special effects was definitely a very big factor in what got me so intruiged that I don't see very commonly used in BLs (probably cuz I haven't really found many of them). Can we take a minute to just think of how precious Ohm and Singto's smiles are? Especially the fact that Singto has those cute dimples that really compliment the look of his smile.
Going on to the rewatch value of the series, the series is so worth rewatching. Many of the scenes just make you wanna rewatch it again and again because of how happy or sad they make you feel. Rewatching sad scenes is fun (in my opinion) because it's nice to test if you can handle the amount of sadness that hits you for the 2nd time (I'm weird like that oop). There is a slight problem however though. It is the fact that the series is in the mystery genre, so once you watch it, you would already know what comes next or why a scene was placed as it is. Rewatching the series for the 2nd time does piece together some parts that you miss however though.
Overall, everything was just perfect and I really wished that there were a few more episodes, but that would just make me greedy because the end was already such a good end. It was only the fact that it leaves the watchers dying to know how their story together continues on. What happens when Mes' 3rd requirement is fulfilled? (you'll know what the "3rd requirement" is if you've watched it). Questions from the seriea that you have no idea if they'll ever be answered will remain in the heart.