Big is a South Korean television series that aired in 2012. The drama is a romantic comedy and body swap series.
The story revolves around **Gil Da-ran** (played by Lee Min-jung), a struggling substitute teacher trying to get her certificate. She is engaged to a kind and handsome doctor, **Seo Yoon-jae** (played by Gong Yoo). However, one month before the wedding, Yoon-jae inexplicably becomes distant.
At the same time, Da-ran meets an 18-year-old transfer student from the United States, **Kang Kyung-joon** (played by Shin Won-ho), who's got an attitude towards everyone except Da-ran. Kyung-joon gets into a fateful 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 Kyung-joon but in the process, Yoon-jae ostensibly dies and Kyung-joon ends up in a coma. Kyung-joon soon wakes up finding himself in Yoon-jae's body.
The drama was well-received although it was criticized for its ending.
