I haven't watched the anime yet, but after I saw your review, I decided to read the manhwa.
I'm not fan of Korean works due to hard to remember names and frequent use of long strip format, but this one has two important qualities. It has rating exceeding 9 points on mangadex - I don't remember any other that I'm reading with such high score. Second - it is completed as opposed to ongoing, meaning that I was sure to get the whole story. Took me 4 days to wolf it down 👍 If anime is on the same level, then I'm definitely watching it.