So, I watched this drama without even watching the first season... a tribute on youtube just made me curious haha
It's not a masterpiece that will keep you glued to the screen but it's not supposed to be one either.
This drama pictures high school students as they encounter daily life problems, with a little bit of mystery added by the "revenge note". We don't really get a satisfying answer to that... however, it didn't really bother me. As I said that's not the main point.

Characters:
I liked almost everyone in the story but the bromance between the two brothers attracted me the most. I wished for more scenes but I'm quite happy with what we got. Seeing them live together, eating together and having their fights... I'm a total bromance fan... oh dear
The love story was cute and it depicted that puppy love we all wished we had in high school.

It's a feel-good story you can watch when you don't know what else to watch at the moment. I definitely recommend it though.
Enjoy the watch! Stay safe, stay healthy!

AS FOR THE ENDING (don't read if you don't like)

---> I was FINE with it. I mean it was realistic. These kids were in love (they still are) but they are only seventeen. I was glad it didn't turn into one of those dramas where the boy leaves his family and those he cares about behind for a girl he just recently met. He decided to repay his mother's kindness and go with her and the rest of his family to the States to finish his studies. I liked that. They are still in love and they will get through this. Nowadays the world has become a lot smaller than it was before.
Sorry about this part but I felt strangely glad about this ending, maybe because I hate seeing families break apart when the kids are still so young.