I have two minor gripes about this one. Firstly the first two episodes were not only boring, but also the premise is a bit difficult to digest. (Math/statistics major in her final year keeps making REALLY and I mean REALLY stupid life decisions) The second issue is that there is a love triangle around episode 13-15 with the minor love interest acting like a blood hound, still at least they wrapped that up rather quickly. ~

I could nitpick about other things, but ultimately they are not important. This was almost precisely the drama I wanted to watch. It's a very sweet romcom, that is very unusual in how all the problems are solved very quickly in a satisfactory, wholesome manner. It's true that this drama has been heavily inspired by Because This is my First Life. Even though that one has quite a few stronger episodes & objectively way more interesting, more three dimensional characters, I think I prefer Perfect and Casual, because it doesn't have a really really frustrating separation plot and we get a lot more fluffy romance too, with many kisses that still remain meaningful in ways that other dramas with dragged out happy endings can almost never compete with. Other reviewers mentioned that they didn't very much like the side characters & their romances. Personally I think that both of their stories were okay-ish..

I mentioned earlier that this show is very unusual in how all the problems are solved very quickly in a satisfactory, wholesome manner. I have to note though, that there are quite a few heavily teased disastrous plot directions. The creators always dodged these bullets, but binge watching is recommended, because most of the teased bullshit gets resolved in like the first minute of the next episode ^_^

The OST is pretty good, normally I have a hard time enjoying Chinese music, but there were some catchy tunes in this one. The cinematography is very decent too..

TLDR: If you like sugar, just watch this one! If you are easily bored, then just start directly with episode 3.