I don't think I can explain how the story is deeply engrossing to me, but I will try.
 
The central plot of the series focuses on the relationship dynamics between Xiao Yao and Cang Xuan (the two protagonists). They were inseparable when they were kids. They were each other's world. A series of misfortunes and sufferings befall their relationship, and they were separated for three centuries.
 
The FL has deep, imbedded scars from all the things that she experienced while she was separated from her "gege". She is not the same little girl that the ML used to know. Will that affect the kind of relationship they had before? As for the ML, I can see that he is now a good candidate to become a great emperor because he is really calculating, cunning, and ruthless. His relationship with her will probably be put to the test by the many decisions he needs to make. The question is what kind of path he would take—will he choose the right one or not?
 
As a viewer, I find it exciting to know what direction their story will go. Not only will the two protagonists have to make up for the lost time, but they will also have to deal with lots of other things. The biggest one will be the other male characters, who will play a vital part in the female lead's life. I really can't wait for everything to start unfolding.
 
Big kudos, by the way, to the whole cast and crew for making me feel enthralled by the world-building, storytelling, and acting from everyone! The actors and actresses play their respective characters extremely well. This drama is a depiction of a very popular novel by a well-known Chinese author. Mediocre acting from the cast will be heavily criticized by now from viewers, but that is not the case, and I hope they will be consistent about their portrayal all throughout the show.
 
I am enthralled with Lost You Forever and hope that I won't be let down as a viewer. I will get back to this review after I have finished watching everything. ✨

----- continuation-----

I deducted 1.5 points in my review. It doesn't seat well with me that the FL is having conflicting feelings between two male leads. I have read my fair share of books and mangas (The Legend of Basara, Saiunkoku Monogatari, Ten Miles of Peach Blossoms, etc) where "reversed-harem" is one of the themes, but those heroines never wavered despite whatever circumstance befall her and her love interest.

-----continuation-----
I brought back a.5 rating to this drama because of some realizations I had. The female lead (XY) wants the best man for her. A peaceful, happy life with a devoted partner is what she is looking for, and she always reminds us of that as viewers.

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Season 1 finale: 9.5/10 score.

I think season 1 of this drama gives me a great feeling of love and longing. I want to know how they will conclude all of the unfinished conflicts in season 2 because I really like how everything is written according to how it was in the novel. I'm excited to see how they will conclude everything next season.