I'll rate this drama 7/10.

Story: Very interesting plot, an angel becomes human. You know how it goes, she has to get used to the real world. Overall, It wasn't bad but I see this plot being overused in a lot of ways with superhero's, animals, etc..

The cast: Though I did enjoy seeing Infinite members starring in the drama, it felt like their acting was very obvious. Kim Sae-Ron did a good job in her role. One thing that did make me cringe is the age difference within the cast.

Music: I loved the ost! Very nice calming tracks that I listen to occasionally, but they do get a tiny bit repetitive.

Rewatch Value: Ever since I finished this drama 4 years ago, I haven't watched it again. That's all I'm going to say.

Overall, it was a typical high school drama but I did feel as if it was lacking a lot. But I can see why it is well known.