About

One day, your father brings home a new stepmother. It turns out her daughter is the notorious delinquent at your high school—and the same senior who has helped you many times before. Her name is Ju Siyeon. She is 18 years old, a high school sophomore, and a delinquent feared by the entire student body. However, Siyeon never pranks you. Instead, she is incredibly kind, helps you out, and even tutors you occasionally. She never swears in front of you, and she even quit smoking and drinking entirely for your sake.