40 year old Hye Jung (Jang Seo Hee) is a professor in the Department of Sociology at a university. She prepares a paper on extramarital affairs. One day, 21 year old Woo Sang (Jung Suk Won) appears in front of her. For the first time in a long time she feels like a woman. She wants to love him and is loved by him. Meanwhile, 21 year old Woo Sang is anunstable young man. Woo Sang can’t approach Hye Jung easily.
