Flowers down to rattle his mother is 19 years old lived 20 years jjaein campus life in front of her twenty years 'am' is the very first time unfolds. 15 Class of newbies 'am' and the friends of the twenty freshly painted and communication menbung youth project respond.
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.