BIG | Episode 04 | K-Drama

Big is a 2012 fantasy-romance K-drama where an 18-year-old student's spirit (Kang Kyung-joon) accidentally swaps bodies with a successful 30-year-old doctor (Seo Yoon-jae) after an accident, leading to chaos as the younger soul must live the life of the older man, who is engaged to high school teacher Gil Da-Ran, Kyung-joon's teacher, creating a complex love triangle with a mischievous twist as Da-Ran falls for the doctor who is actually the student in disguise, while the real Yoon-jae's spirit struggles to return.