First off...this is the shortest C-Drama I've ever watched...that being said, it wasn't drawn out or overdone! I think it was well presented, and the stories were explicit. I loved it. I loved how they took the time to tell almost everyone's story who was on the bus...at least the ones who they suspected. When the leads found out who the culprit was, I was like...why are there so many episodes left? Get the bomb off the bus, and you're good to go. However, it developed into so much more once the real culprits were discovered, and I loved how the story was written in such a way that you cared for every passenger by the end of the series. It is a must-watch for sure. I don't think it needed a romantic line, but they didn't dwell on it too much for it to be awkward. To me, it came out of nowhere, and it felt a bit out of place. I'm glad they started the romance off with a hug and not a kiss. As a romance fan, I would've been okay with a deep connection at the end because the drama didn't need it, in my opinion. Still a good watch. I love this kind of drama.