I tried watch it this once, but stopped because I thought it was a bit too sketchy. I tried it again and really liked it. Lee min ho is a really good actor and he shined in this. He played the character extremely well. I wasn't a huge fan of the female lead though, but that's probably just from her unlikable character. The story was good; it was intense, slow, and bittersweet. There was action in this that was well choreographed and that seemed real. I also liked how it delt with a realistic storyline by bringing in higher ups in jobs, bad orphanages, and twisted people.