why wouldn't i give this drama a 10 .. for me this drama is very effing perfect. when i first watched it i thought this would be boring but because i have nothing to watch i tried it and then for the first few minutes i was astonished. the story is very intriguing and you will never get bored. and it was proven that first impressions don't last.it is really a show that will captivate you in only a few minutes. this drama won't be a waste of time. park si yeon was really good in acting. i hated her and that proves that her acting was really so great. actually i wanted to slap her in the face because everything she did was hurt song joong ki and also moon chae won. as for moon chae won, i also kinda hated her because she was so selfish and a brat but then as the story progresses you will kinda pity her and feel how she was hurting so badly. you will feel anger against kang maru (song joong ki) because of how he tried to play with her feelings. but then you will also see how pure her character is. as for song joong ki, you will hate him and also love him at the same time. he is just a man who was really crazy in love with the wrong girl and then manages to find miss right. for me his acting was really so great. i liked him in sungkyungkwan scandal but then in this drama i can say that i do not like him anymore but then i love him. he made me angry, cry and lastly fall in love. and in addition Kwang soo was so epic. he was just a funny character but then as the story progresses he made me cry because of his love for his friend (maru) kya~ want to rewatch this again. this drama will let you feel all kind of emotions. you will surely love this drama like how i love it.. for me this is one of the best kdrama!!!