I already completed reading the manhwa with the same title. The plot and story is completely pure, cute and fluffy.
As of now, after watching the first episode, I found the same adaption from manhwa and drama is quite fast paced.

I am very excited to see the characters (from manhwa) in persons and I found every character played their roles well. Acting is to the point. No awkwardness.
For those who are not aware of the genre.. ITS BL?
Homophobes please skip it.
As a huge fan of BL, I really loved the manhwa and drama (ep 1) as well.
Though it may seem a bit early to give good review just watching first episode, I can guarantee that its worth the watch.
I totally recommend watching this drama.