The story is based on a real story which makes the story highly interesting. I really like the fact it was very realistic which is normal since it is based on a real story. It really is not boring at all. It is the type of story I truly enjoy because it is entertaining and educational at the same time. Frankly speaking, it is impossible to complain about the story !
I also have no complain about the acting. The acting is superb, the main actor Lee Hyun Woo is such a good actor !
The music also goes well with the movie.

Overall, everything is good wich is why I recommend it, it is honestly a very good movie, a movie we should not miss!