To be honest, I was a little skeptical at first when I realized that this show only has 8 episodes because I don't like too fast-paced stories.
Surprisingly, despite the low number of total episodes, the story never felt too rushed. As a result, the main couple doesn't reach the level of "total lovebirds" as couples in other dramas or the super adorable second lead couple of this show, but that's ok.
In the end, I loved pretty much everything about it - from the cast to the characters, the soundtrack, the message of this show and the warmth I've felt throughout the whole drama thanks to the amazing friendships depicted in it.
The only reason I removed one star is because the plot itself isn't totally new and a little predictable.
However, I've never felt like this show was missing something and although the plot is predictable, I was never bored because it was fun to watch all the character and relationship developments. The fact that the perpetrator of the anonymous messages isn't revealed until the last third of the show adds some suspense to the drama.
Conclusion:
I HIGHLY RECOMMEND this show.