This was my first taiwanese drama after 2 years.. It's not the reviews that convinced me but the genre. As always, I'm a revenge-melo drama lover so when this show was still in it's early few episode, I've decided why not I give this drama a try. Who knows I might be like it. Now that I do. I did'nt just like the show. I LOVE IT. COMPLETELY. DEEPLY. I will just give you all the reasons WHY YOU SHOULD WATCH BEHIND YOUR SMILE : 1) The intrigue plot of revenge. It's nothing original about it. You got a main male lead who was hellbent on taking revenge on people who had done wrong to his family and eventually lead to the death of his father. It was the only mission of his life provided that he successfully carried out his revenge. He since then become the Ice Prince, cold and heartless. Then our main heroin, the Warm-Hearted Princess came along into his life accidentally. She who since then melt his frozen heart and teach him how to smile again. The story sound so typical was'nt it? This no mistake was the foundation of the show but what made me fall in love with the show was how the story being directed and developed. There was nothing typical of it. It was addictive and compelling. Watch it if you want to know! 2) Good acting and great chemistry between leads. At first while watching Marcus Chang potraying Zhao Yi Ting, The Ice and Jerk Prince, I'm not so convincing. I noticed the awkwardness and it feel slightly fake. But as the show goes on, as I became more warm up to his character, I think that his acting became much better. He became better with his facial expressions even the subtle one. When he's in pained expression, I can feel it as my own. I can feel his heart breaking even when he wore a cold facade. I tell you that,if an actor manage to make the viewer feel that, He. Is. Really. A. Very. Good. Actor. And Liu Eugenie as Lei Xin Yue. Her character was annoying at first. Definitely became annoying and weak were her characters in the early of the show as the one who has been sheltered entire of her life and she did very good at that. Later on, she became the strong heroin that I want. She also shows that being strong is not when you let go of the person that you love but being able to forgive and hold on the person that you love even if he hurt you beyond reason because you can see the ways he love and take care of you more than the ways he hurts you. It sound dumb I know I know. But she really shows only those who have big heart can forgive people. :P 3) Very smart and wise male lead. This show have it. Zhao Yi Ting was never one step behind while dealing with his enemy. He is sensible and insightful.To have a revenge based drama, a smart and clever lead was a must. It is absolutely no fun in watching revenge show with dumb and slow-witted characters. 4) Good looking main leads. If you only watch the show with good looking leads. This show might be for you. At same point while watching the show in it's early episode, I even thought the 2nd male lead was much more good looking than the 1st male lead :P 5) No love triangle. If you hate a romance show with love triangle/ rectangle / polygon this might be the show for you. There was only one-sided crush present in the show and even that was'nt too burdening because our heroin's love to our main male lead was unwavering to the end. 6) Very hot steamy kiss scene :P (I'll leave it to your imagination of how hot it is.. :D ) 7) The OSTs was so great. All the soundtrack was so damn fantastic that I must download all of them and keep it in my phone. I usually got bored while hearing the same song over and over again but it was'nt the same case with all the song in BYS. It now has been dozens of times already I listen to the Shi Shi - He is'nt Worth It, I keep wanting to listen to it more. I also love the Don't panic song the same. It is cute and catchy. Alright, I think 7 reasons are enough for now. Lastly, I recommend this to everyone who want to watch revenge-melo-romance drama at this moment. Give it a try, you might love it the way I did ^^