Twenty Again (두번째 스무살 / Doobunjjae Seumoosal)

The story revolves around a 38 years old housewife (Choi Ji Woo), who decided to go back to school and experience the college life for the first time. She spent the last two decades as a housewife after she got married and became a mother at the age of 19 years old. Her 20 years old son (Kim Min Jae) and his girlfriend (Son Na Eun) are her classmate, while her husband (Choi Won Young) and her first love (Lee Sang Yoon) are the professors in that college.