Mmmmmm....I dont have too many word to say about this drama, when I read the plot before watch sound interesting and Sung joon catched me in anther dramas, so I decided to strat. However the story was boring, nothing new and always really predictable, I was unconfortable with the actuation of actress in my opinion she was so exaggerated and unnatural. Also after some episode the situation becoma si stupid all charathers know what happen but continues pretending and lying and all i the the same direction "experiment" and repeat the same thing. The others couples were nonsense just the las part in a magic way they solvet all. The only interesting part is some coments relative to psychology but I,m no sure is real or not.