Sehun and So Hee were a total sweetheart from their school days. Everything is great until one day So Hee found the best solution for her endless miserable life. Oh Yi Fan, the guy who will inherit half of the company's share, propose her to the unbelievably irresistible deal. To be his bride. Not knowing the guy who will married her is actually the brother to her past boyfriend, So  Hee was shocked to see Sehun on the altar, holding the ring for her wedding. Despite the issues that they face, Sehun though decided to stand for his brother and So Hee's desicion in front of their mother.

On the day of their honeymoon, Yi Fan suddenly had an urgent meeting with the company's share holders and had to ask Sehun to accompany So Hee to Jeju Island instead. That's when So Hee met Luhan who was one of the residents at the nearby small town. As for Sehun, he got close to Suzy who work as a part timer at the hotel. Through a serial of events, Luhan found himself falling for the mysterious So Hee and Suzy unconciously gave her heart to Sehun. On their last day of vacation, Yi Fan comes to bring So Hee back to Seoul. Without bidding a proper goodbye, So Hee left Luhan and went with Yi Fan.

The broken hearted Luhan and the naive Suzy then head to Seoul to try their luck at Yi Fan's company. They manage to pull off company's interview and it freaked both So Hee and Sehun. Fightings for her feelings, So Hee tries her best to be a faith wife toward her kind husband despite facing her troublesome mother in-law. In the meanwhile, Suzy is willing to do anything for Sehun's heart even when she clearly realize he is still in love with his first love. 

Will they eventually sort out their problems? Will So Hee actually find the happiness that she searched for? Will Sehun finally learn to let away his past and open his heart for Suzy?

"To be or not to be in love, it is only a matter of how you see it. If the power of your mind surpress those feelings in your heart then you will be just fine. At least, that was what I thought until I met him."

"I have never said it is going to be easy. And, your life may get worse once you step into my world. Yet, that is the exact reason why I chose you secretary Han. I promise you... In this seems to be worthless circle of life, I will always be on your side regardless of anything that happen in future."

"I will keep waiting for you. If time is thing that you ever needed. But, are you sure you're confident enough to leave everything behind to just be with me? Because I'm sure I could even choose hell if it was for you."

"I... am not, cannot and will not fall for her. Since that day she breaks me into pieces, my heart has been closed and it is almost impossible to work normally again. But, I can't denied... Sometimes, this trembling heart keep earning for that contagious smile. And, if I could choose, I will undeniably turn back to where we first met so that she would never fall for me in the first place. But, if I could, would I? Or would I not?"

"Tell me. Tell me the proper way to break through that cold heart. If you tell me nothing, how do you suggest I can cure you?"