I just completed this drama after watching Love in the Air. According to me, this drama was a bit better in terms of the story than LITA. It had one plot. I can understand why people are giving bad rating to this drama (BDSM). If we keep aside this part, then I think it deserves a better rating. It is not everybody's cup of tea do such acting when you are new. LITA had 2 stories which was all the more confusing for me. But, again according to me, if LITA can get a better rating, then I think this drama also deserves a rating around 7.5. I really loved the ML of this drama. The ending was also cute.
https://www3.myasiantv.cc/movies/buried-city-to-shut-all-light-cn-2019/episode-1