I watched this drama because this drama brought something new in K-drama.
The characters are also easy to remember and very unique.
The acting skill of Jung So Min was brilliant. Others also ok.
The drama also contains humor, which is nice.
However, I stopped watching two episodes before the ending. It was too draggy.
So, for me, not worth to watch the continuation.
I think the script and logic are a bit messy approaching the end.
I wouldn't blame the cast. This is production team's and writer's faults, IMHO.