The story revolves around a 38 years old housewife, Ha No Ra (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 Soo (Kim Min Jae) and his girlfriend, Oh Hye Mi (Son Na Eun) are her classmate, while her husband, Kim Woo Chul (Choi Won Young) and her first love, Cha Hyun Suk (Lee Sang Yoon) are the professors in that college.
