Kang Gary and Song Jihyo was famous as the Monday couple in Runningman. What if, those feelings were real? But because Jihyo's manager told her that she couldn't ruin her image, she had to have a scandal, dating someone else. There are reasons.

"Why?" Jihyo asked.

"Because it's best to do that, you have to keep this reason a secret." The manager said.

Thus, started Jihyo's scandal about dating an CEO. The whole universe knew about her dating someone else instead of Gary. As many fans were heart-broken, and many were supporting her still, Gary, the Monday couple, smiled and supported her. But deep down, was a pain that he knew he just couldn't show. Jihyo sadly, stopped the Monday couple, as many fans tried to understand. Jihyo had to keep this secret of dating a CEO which wasn't true, and wanted to be with Gary, but she's scared that her manager will know and will do something that can ruin her. But, what if...there was a reason behind this secret? Why was this scandal a secret, because it'll make Jihyo's image bad?  Or does this reason have another story behind it?

TRAILER : [ Monday jjang! ]