First of all, this year, CDramas have completely outshone KDramas for me. And, of course, I had great expectations about this one as well, because, I like the Teacher-Student rom-coms as they are few worth watching and Miles Wei (Our Teacher Zhang) looked promising enough to not ruin the show for me. (By this I mean, the unusual age gaps that makes one uncomfortable with a teacher-student relationship) Needless to say, Perfect and Casual exceeded my expectations. I was NOT ready for the onslaught of overwhelming sweetness, not to the extent that would give you cringe or make your teeth on edge, but the slow and melting sweetness like honey. The leads were hands down the best actors for this drama. Miles Wei (Wei Zhe Ming) and Xu Rou Han perfectly delivered. Their chemistry was spot on. The story itself might sound your same old plot of helpless cohabitation and contract marriage, but it was so much more than that. The romance was not rushed and sudden, it grows with them and that's just so cute. They communicate, respect each other, and I would recommend everyone to watch it.

One important thing: there's no water splashing or money throwing xD

What I liked about this drama:
1. Miles Wei as Zhang laoshi
2. Xu Rou Han as Yun Shu
3. Miles & Rou Han together
3. The OST
4. The second ml and fl
5. Grandpa (He's just adorbs)
6. The little interactions between the leads which makes their relation so relatable and so real
7. The behind the scenes footages (one must see those)
8. Miles Wei (because he's worth mentioning twice)

What I disliked:
1. The unnecessary addition of a certain female's unrequited love (I'm not gonna mention who, but you'd get it and honestly, this also became a likeable part because she gets what she deserves)
2. The relationship of the friends of Yun Shu

Would I rewatch it?
YES