Why is this drama underrated? I don't understand. I'm not really in to watching kdramas especially the new ones because they kept recycling themes, concepts, story. But this one, I really enjoyed watching it and I can say it's one of my favorite dramas now. The drama has it all, the thrill, action, suspense, mystery, romance, comedy. I haven't felt so many kinds of emotions in one drama until I watched missing 9. I highly recommend!