This drama was one of those dramas that makes you cry even if you already know everything from episode one.
You'll find out the mai event after 5 minutes from the start of the show so you sort of think you'll be ready for what's coming but in the end, you'll not be.
The main relationship between Ha Min e So Mang is beautiful. The flashback way of telling the story was a great cinematography choice and their acting was very good. The second story (the one in the present) is a bit less interesting.
The youngest school kids aren't the best at acting, not as good as the two main character so that's why I gave the story and acting at 8 and no more.

The ost is amazing. That deserves a 11.

The rewatch value is low cause once you'll know the story you might not feel like a rewatch especially 'cause you've cried enough once.