I don't get why some people think that this drama sucks... I really enjoyed watching this! It is really funny,it has action,it has romance,the music is amazing,the acting is perfect and many unexpected things happen! Yes it does have some supernatural things but they really fit to the story!!The plot was really nice.It isn't just about martial arts and fights,it teaches you the importance of friendship,the hardships that many people go through etc I finished this drama in 2 DAYS!! This is how much I liked it! And now here I am again (2 days later) to watch it again. I highly recommend this drama! You will enjoy it for sure.This is my favourite kdrama now :') Have fun while watching it :) ^^