I watched this drama as a full compilation of all episodes in one evening. It is simple, entertaining and perfect if you need to relax and just watch something nice with no need of too much brain.
What I like:
The relationship between people. The parents (specially mom of the ML) love their children and want them to be happy. The relationship of ML and his mom has Europian vibe to me.
The story has no true villains and the drama shows real friendship.
The ML is more airhead than mean and the FL gets him.
The acting of the main couple is pleasant, the girl looks like little bunny.
What I dislike:
The story is super cliché and there is almost nothing new.
The setting of the story is unclear. There should be 20 but they still wear a uniform at school? But the story itself doesn't have a big loopholes only timeframe seems to be messy.

Conclusion
This drama is simple, straightforward and very cute. I can recommend to watch it if you want to relax. Translation is ok and it has effect of good soup - you feel better when you finish. I think it can be watch again just to enjoy the relationship between characters. There are not many kissing and romance, but I didn't mind it at all.