I understand this drama is a second part of another, which I didn't watch, but this one is a pretty decent standalone, You would miss watching the first as a backdrop to this storyline.
There's a mix of humour, angst, a good story and non cheesy acting from the leads.
Production quality is even better than some of those big budgeted dramas out there.
If you're looking for goofy light hearted drama centred around a serious core plot, this is it. Enjoy.