Successful businessman Joo Won has to take the actress Chae Rin to Oska, the famous singer, also his cousin, to prevent a scandal. But instead of Chae Rin, he actually takes her stunt double Gil Ra Im to the hotel.

Being relieved the scandal with his ex Chae Rin is solved, another ex of Oska turns out to be a candidate as his new director. And Joo Won can't stop thinking about the stuntwoman, does he like Gil Ra Im?

Joo Won starts to follow Ra Im and he invites her for a lunch. After being rejected, he's determined to stick with her and even comes to the action school where she's working. But then he finds out how different their worlds are.

Joo Won insults Ra Im for her lack of wealth, but he can't get her out of his mind. Oska tries to recruit singer-composer Tae Sun to be his protegee.

Oska isn't pleased to find that his ex Seul is the director of his music video. A bike race gone wrong leads to surprising consequences for Joo Won and Ra Im.

Joo Won and Ra Im try to figure out how to switch back without arousing suspicion from others.

Still stuck in each other's bodies, Joo Won and Ra Im have to live out each other's lives, but their differing personalities confuse the people around them.

Ra Im and Joo Won use their new-found positions to annoy each other and play with Oska and Seul's feelings.

A rainstorm allows Ra Im and Joo Won to switch back to their lives, but remnants of the other's presence still remain. Oska is rocked by a plagiarism scandal.

Unable to forget Ra Im, Joo Won decides to see her for three months, which garners his mother and Oska's disapproval.

Joo Won and Ra Im break up, but they both harbor feelings for each other. Passive aggressiveness and confrontation ensue between Oska and Seul.

Joo Won's mother threatens to send Ra Im to another country if Joo Won does not start going on blind dates again.

At the mountain retreat that the action school goes to, Ra Im realizes how attracted she is to Joo Won. Oska finds out who leaked his plagiarized song.

Romance develops between Ra Im and Joo Won. When it rains again, Ra Im and Joo Won switch bodies, causing a series of mix ups.

With no choice, Ra Im and Joo Won reveal their secret to Oska and Jong Soo. Ra Im gets Joo Won to audition for Dark Blood in her place.

Ra Im rushes to Joo Won's side after his claustrophobia attack, missing her audition for Dark Blood.

Ra Im tries to break up with Joo Won after learning the truth from his mother. She wins the starring role in Dark Blood.

Only magic can save Ra Im and Joo Won, but when Joo Won wakes up, he reverts back to his 21-year old self and does not recognize Ra Im.

Things start to look up for Oska both personally and professionally with Seul. Joo Won regains his memory and runs back to Ra Im.

Ra Im and Joo Won get married despite his mother's disapproval. Seul professes her love for Oska during his big concert.