STORY It had a fresh concept but there was a hidden big cliche which made me bored... because once you understand the concept there was nothing new.just another story about the dark past about a third-generation billionaire and his love story..even though there was a twist it was not that strong. it just had that one path ..so it was unable make a flood of different emotions i would reduce the rating for the story but i think that new concept deserve something.. CAST Ji Sung. Hats off to Ji Sung..he portrayed all those 7 different personalities amazingly..If you are a Ji Sung's fan you MUST watch it..There were two personalities which were eye candies.. Hwang Jung Eum She did her part well but character-wise there was nothing special. Park Seo Joon His character was cute and he portrayed it well.. Basically this drama had great cast who did their job well. Music Good OST ...helped to enjoy the drama and the emotions.. Summary NEW CONCEPT BLENDED WITH CLICHES DECORATED WITH A GOOD CAST!