This is a romantic comedy that starts when the writer falls asleep and then gets trapped into her own story.
For a short drama, the story is actually quite good. In fact, I believe it could effortlessly became a really nice drama of 12 episodes of 30 minutes each.
There are lots of interesting things in the plot that could be more explored in a full length drama or in an eventual second season, like the circumstances around the death of the first brother (he's death is not a spoiler since we find out about it in the first minutes of the first episode) and everything about the mysterious second brother.
In my opinion, the romance was well developed, but it definitely needs a continuation.
The actors were unknown to me, but they did a pretty good job.
There is no real music to acknowledge, just a short transition tune that is a juxtaposition of pieces of other songs (but it sounds nice).
In general, it's a nice way to spend an hour and a half of you free time.