First let me start of with the the only thing I liked.... The music. What a waste of such high quality songs that are very nostalgic and beautiful.

I was not impressed. At all. It started of fine but I was really hoping that it would not follow such a repeating pattern, with I'm not a fan of.

The female lead reaaallly irked me. I'm not trying to spoil anything ( maybe a little) but the way she treated the male lead seamed ignorant and came across rather uncaring. He persistently tried to confess and it was so hard for him you could see that. Yet she didn't even make the effort to listen, even though she "apparently" liked him. Also the efforts she told were.... Weak to non-existent and kind of puzzling, so when you don't pay the most mindful attention it gets overlooked. And let's face it, not everybody has such an eye for teeny weeny details.

I think the main lead should have just moved on she didn't have him attention nor the love he needs

Personal note:
I would really appreciate more dramas where not only one character makes an effort.
Even if you try to make the female leads always perfect they aren't. Especially in this drama where the girl doesn't seem that lovable yet she is always the center of his universe and he gets hurt time and time again.
I think scriptwriters should always pay attention to how the character feels and maybe let the character have a personal point where he / she says that it's just not worth it and to take a step ack and maybe take another way.