Even Though I have watched a ton of Dramas, Im certain to say I havent watched one like this one before, it just keeps getting better as the episodes go on; Also whats really good about this Drama are the performances of the main characters, like they really make you feel for them; Also the soundtrack, beautiful.
And also something I really liked was that the events don't always happen around the same characters, so it wasn't boring at all.
you should REALLY watch it.