I wanted to write a review since I finished this drama but the real life got in the way. But now I have a little time to write about this amazing drama (and one of the best Actors I have ever seen). This drama has it all. Tension, Action, Emotions and also silent moments. It is like Circle but also very different. For those who want romance I have to disappoint you, because this drama focuses on friendship and relationships between family Members. The Story is about a father who searches for his daughter who was kidnapped. With the hope of finding his daughter he teams up with a mysterious young man who he believes knows where the child is. The two of them teams up to rescue the child, but after a few episodes you will know, there is more than that. When I watched the first Episodes I asked myself if there will be more conflicts or if the main theme will be the search for the daughter. I can say the wait was it worth because the Father-Daughter Story is important but there is mysterious Case who is very important, too. Maybe more important. Cast: The first I want to say is, that this drama was amazing because of Yang Sejong. His Acting Skills are like he is in the industry since years ago. But he is a rookie. I didn't watched his debut drama „Romantic Doctor, Teacher Kim“, yet but it is on my 'to watch' List. He played not one or two roles, but three roles. They were all very different and he acted like a Pro. In my opinion he is an amazing Actor. I like many Actors but Yang Sejong is talented as hell. He is one of the best young Actors I have ever seen. In this drama he shows us his skills every single time he appears. Without saying much of the Story I can say that he acts like a pro when he plays more than one roles (plus all of his characters are very different from each other). Duel was my first Drama (or movie) with Jung Jaeyoung so I don't know how he acted in other projects. His Acting here was good. I liked his relationship with his drama daughter and his interaction with Sejongs character (or should I say one of his characters?). He has a lot of emotional scenes but I is a veteran Actor, even though he has more experiences with Movies than dramas. His emotional scenes were very movie so I liked his acting a lot. Seo Eunsoo was okay. Not amazing but I liked her even though I think her role wasn't a must. The drama would be good without her role, too. The Actress I was disappointed in was Kim Jungeun. I know she is a very good veteran Actress but I think her Acting here was disappointing. Maybe it was her role, but she could have done better. Most of the time I hated her. Honourable mentions go to Choi Woong, Kim Kidoo, Lee Chulmin and little girl Lee Nayoon. They were good actors and I enjoyed their scenes a lot. Music: The Music was good and suited the moments it was played very much. So I think it was good. In Conclusion the Acting of Yang Sejong saved this dramas rating for me. I can only repeat myself. He was so amazing that I could watching this drama all day. But I haven't time. Luckily he has a new Drama *-*.