I really enjoyed the first half of the drama... it started out really funny with hilarious interactions between the characters and great mysteriousness to the background of the main character. But as the drama went on, more and more mysteries were pilled on top of each other which then created a total mess. AND unfortunately, that mess wasn't cleaned up. At the end, it was just quickly wrapped up instead of giving clear explanations to the story. Personally I wouldn't have minded 10 more episodes to really sort out the mess and explain each mystery. I wanted to give the drama much much higher rating due to the first part, but unfortunately my feelings were torn to two sides due to the last episodes. Apart from the plot line, I liked the acting. I know at first it might seem silly and immature but I think that's the gem of this drama. The music was catchy as well. So really all in all, not really worthwhile watching unless you are ready for a disappointing wrap up of the drama.