Ling Jian Zun 4th Season

It seems not to be an uncommon Romeo and Juliet type plot device in donghua to have the main protagonist meet the love of his life, only to have her stripped away from him, whether because she originates from a different clan, has highly sought after bloodline powers, or the antagonists just want to rub salt on the wound after killing him. In each of the following anime, the protagonist is either reincarnated (as in isekai) or a lot of time has passed, and he's looking for revenge. This device sets up the ultimate underdog revenge fantasy story by involving a most human aspect in their motivation for facing against practically the entire universe: love.

Although I haven't read any cultivation novels, from what I can tell, the web novels seem to be written as a series of background descriptions and character actions, meaning unlike comic books, focus is not given to dialogue. When studios buy licensing rights, they often churn out mediocre work with a generic script where characters more or less repeat the same lines in different similar situations. This is partially because donghua monetization rely on ad revenue and subscriptions as opposed to expensive merch as in anime.

3 out of the 4 following donghua fall into the category of what I described above. My point is the scripts are really bad, but if you are able to pay attention to the overall plot instead of the mindnumbingly cliched and repetitive lines and trope, you might be able to enjoy them.

In terms of narrative and script quality, Mirror: Twin Cities is the best on this list.