Another well-rounded drama.
It hits a home run: most of your feelings are played with by the characters or events.
Different genres, charming characters to root for and an immersion in the school world.

The cast illustrates the feel of the story: It's okay to not be okay + Hometown cha-cha-cha (same director as the latter)

Urban setting. Seoul life is suffocating because of the stress adults exert on the kids.
Since then I have heard a former teacher complaining about "Gangnam mothers" ; now I know what they are!

The young actors have a big part to play and they are perfect. I hope they were well taken care of.

2 things bugged me:
The age of the female lead... I love her age and talent!
But she does not look "too young to have a teenage daughter".
+
A creepy thing is the time chosen for the first lovemaking of our leads.
My biased self figured a guy must have written the script to choose that specific day in the story (wrong! LOL).

I have rewatched this drama 2-3 times already ^^
(I can focus on the acting and not on subtitles).
The mothers were too intense for me : turns out I have missed some story bits by fast-forwarding.