I have just finished watch this drama and I loved it. It has all the must have situations of a good and classic drama. - LOVE STORY: of course we have it! And it is a very good love story with the right amount of drama! - TRIANGLE: YES WE GOT IT! And sometimes it comes to be more like a pentagon! - EVIL: yes and we don't know who is the real evil character till the end - COHOUSING: no sharing house no party, baby! - AMNESIA: this drama is full of amnesia! I have to mention the really good chemestry between all the cast, and Ji Sung that is playing so many different characters all in one is amazing. I loved also the soundtrack, really appropriate! I've watched it in 3 days. Do I need to say more?