The drama is so well filmed. The whole story was perfectly portrayed by the actors, however, I was kind of triggered by those unending crying scenes (they just were there, no spoiling).
If you are planning to watch this drama, it's probably not a secret that it´s overall a pretty sad story. Whether it´s the heart condition problems or the love between the main couple.
Anyway, I liked how they uniquely portrayed every relationship. I mean...it wasn't cringe (mostly parent-child relationships are portrayed like that)

I would highly recommend this show mostly to girls in their teen ages or in their early 20s (close to the characters' age)
P.S. Be ready to laugh, cry, smile, fangirl over the main cast and be ready for everything