I watched this kdrama a few years ago and I'd say this is one of the best kdramas I watched. I would rate it 9/10, I liked how the story progressed I just didn't like the ending. The OST of this drama are also good. The actors played their roles very well, the bromance of mawang and sun oh gong makes you more hooked with the drama. Overall, it is worth the time to watch and I hope there would be a season 2.
In my opinion, the female lead has more chemistry with the second male lead. I totally ship them.... especially the second male lead was always ready to help her from the start.