This Drama started brightly and as a fan of Shen Yue I was hoping for good things. Sadly, it fell flat rather quickly.

In her EXCELLENT review
https://mydramalist.com/profile/8862033/reviews

Sandy Prater said in part:

"As for cons, the biggest is the script. At times it wants to take itself very seriously and tries to set up moments of intense realism/realistic issues but then uses the most ridiculous and fantastical scenarios to "solve" them. The conflicts are repetitive and (without revealing any spoilers) don't really show much growth in the characters - just a dull acceptance from the characters themselves or those around them, which I don't believe was the intended takeaway."

That 'dull acceptance' bit was a perfect summation. Two especially egregious examples spring to mind. The "geeky girl" of the 4 was treated VERY badly over several episodes (~14-17) by both the school authorities and her friends, but there was no proper resolution. In another instance, in about ep 15 the 'spoiled princess' deleted her BF's entire photo collection of sevreal years in a fit of infantile jealous pique and, at least by the time I dropped at 19, she had NEVER apologised, nor seen any need to.
Shen Yue's own role was a bit disappointing as her romantic fixation was one I found troubling. My wait for another Shen Yue Drama I can truly enjoy goes on