I have finished this really short drama and I love it! It is somehow better than the japanese drama, why? Well because the korreografi of the fights are better executed in the korean version and the cinematography as well! Really loved the music in this, it got me hooked and with an epic feeling! BUT, even though i think they developed characters and story really good in 4 eps.. I think this show deserves more episodes :( Cus afterwards I rewatched some scenes cus i can't believe it's so short and I want more!!