Well if there was award for most irritable female lead it would go to this series female lead I haven't seen a worse lead than her if she wasn't there things would have been way more fast paced and overall series would have gotten better I literally skipped scenes just with her. But man choi yu jin character just did it for me like her acting, how layered, complex, hard to read and predict she was and most of all how broken she was absolutely loved her. And jae ha was good too. In the beginning we do get some solid action scenes but towards the last 2 episodes they were way too unrealistic.