The story, even if the core of it isn't something new, but the way it unfolds and connects those who are affected by the main event is believable and very very humane.
I loved the script, not too much nonsense going on and the characters don't really talk much most of them, there are few talkative ones, few serious ones, few depressed ones, few carefree ones, There is no Evil [erson in this show, just some people who are way too selfish with more flaws than the others.
The Soundtrack is insanely good, hypnotizing, quiet, thoughtful and touching without big ballads or forced emotions, loved the genre they used and how long the song is played whenever it comes on the show, never too much, just a few seconds to set the mood right. I am in LOVE with all the songs.

I gave it 9/10 because there was a lot of flashbacks in the first few episodes, and the lead actress was the only one who fell short as EVERYONE WAS SUPERB that she, unfortunately, paled in comparison, despite her good portrait of Min-soo and the fact it's her first Drama ever! Jun hoo was GREAT! Loved him in all his previous support roles but this time I can say they cast him right despite him being an idol, he deserves it fully. and the fact that e is not the obvious choice (from marketing point of view) nor the lead actress, gave the show much more depth and humanity

They hose veteran actors to play the older people, the Grandma, Min soo mom and dad, and so on. and boy didn't they do a superb job experience s really fascinating.

I strongly recommend this show, it couches you and you get connected to the characters without being too painful o tear-jerker, I will be certainly watching it again!