This drama was somewhat different from all the other contract marriage dramas I've watched. It is also the first drama I've watched where the main couple are in a stable and healthy relationship throughout as opposed to all the side couples that seem to have a lot more drama. It had very unique comedy, especially at the start, but after the first several episodes, all I felt was second hand embarrassment.

I remember wanting to watch this drama when it came out because I loved the cover picture. I'm glad I decided to watch it now. "Perfect and Casual" despite how odd and perhaps cringe the title sounds, it is the perfect title for this drama. Zhang was the "perfect" professor/mathematician (who definitely had really bad OCD) and Yun Shu was the "casual" student who happened to be in one of Zhang's classes. They also dressed the parts really well throughout. Zhang is almost always in a suit and Yun Shu dressed like a university student that couldn't be bothered to dress up.

Despite the fact that we only see him teaching her at university twice, even after they were married and even became a real couple, not once did it not feel like a student/teacher relationship. It made me uncomfortable how she always referred to him as "teacher/mr". But I loved how innocent their romance was. They were both each others first and they were both really awkward (in different ways) when it came to romance, but they somehow pulled it off and made their relationship work.

I loved Miles and Xu Ruo Han in their roles. Miles was perfectly casted as Zhang, everything about him made him look like the perfect, awkward and nerdy professor. Xu Ruo Han was great playing the part of Yun Shu. Her smile and aura made her character seem very genuine, despite her characters stupidity from time to time, not once did I find Yun Shu annoying because the actress played her in such a way that I couldn't dislike her at all.

I loved all the side characters and how close everyone was in this drama. I especially loved the grandpa who was the catalyst to the beginning of all the relationships, at least Yun Shu and Zhang's relationship, and somewhat the start to Yun Lan and Lu Yu's relationship.