I won't say much to this, but it is really really really well done.
Since I can't come up with negatives, I won't be using my usual review format.
This series the acting, the music and the story is really well done.
The actions of the characters are relatable and its just so touching.
Especially the dialogue flows really well between our two main characters.
It really hooks one from the first episode to the last.

The setting is also pretty and yes I know the setting is placed in school, but its really not a cliche.
Both actors are really handsome and even if I dont think that should be a deciding criterium, it is really nice to look at.

My recommendation : Watch it :) Support it.