Gil Da-ran is a struggling substitute teacher trying to get her certificate, and engaged to the most handsome doctor in the world, Seo Yoon-jae. It's a fairy tale dream come true until one month before the wedding, Yoon-jae becomes more distant. At the same time, Da-ran meets a young transfer student from the States, Kang Gyung-joon, who's got an attitude towards everyone except Da-ran. But then Gyung-joon gets into a car accident with Yoon-jae, and the two of them drive over the guard rail and into the deep waters. Yoon-jae tries to save Gyung-joon, but in the process, Yoon-jae dies and Gyung-joon ends up in a coma. Gyung-joon soon wakes up...but finds himself in Yoon-jae's body!
Gyung Joon decides to not be used like his mother and tries to leave for LA but Da Ran arrives to the airport on time and stops him by revealing her true feelings.In the end Gyung Joon helps Yoon Jae but the cost is losing his memories after the accident.The one who wakes up is...Watch Now:AmazoniTunes
Da Ran then tells Kyung Joon that she has changed her mind. The couple promptly tell the news to Yoon Jae's mother. As a result, Yoon Jae's mother confront Da Ran's parents. Her parents demand that either Da Ran marry Yoon Jae or never see him again...Watch Now:AmazoniTunes
Although Da Ran decided to return the ring and be together with Gyung Joon,things were changed when the truth about Yoon Jae's illness and the real Gyung Joon's parents is revealed..However the person Da Ran decides to protect in the end is Yoon Jae.Watch Now:AmazoniTunes
In her mind, Da Ran is starting to accept that it is Gyeong Jun in Yun Jae's body. Both are faced with the many possibilites and consequences of the situation they are now in. Amidst it all, Da Ran is seeing her fiance in a new light. Gyeon Jun is slowly getting into the real life of Mr. Seo Yun Jae...Watch Now:AmazoniTunes