They both made a stupid mistake. if they have a chance to go back to that time, they want to correct the entire mistake. but, they don't have time machine to do that, nor a time turner. they wished that was just a dream but hell, it's not. they kept the mistake as their mutual secret and kept hoping that the entire world won't find out.  "she won't find out if any of us won't tell her what happen," he said. "we won't tell her. what happened here, it's end here," she said.

Jessica and Nichkhun. Both of them are the shining stars. although they are both in the same industry, they never collaborate for any project. one day, they both were coupled in a CF project and their story started from there.   THE CAST