I am an ordinary girl, pure-looking, unruly and willful. After arriving at school, because I was ridiculed by my classmates, I left school and bumped into someone I shouldn't have bumped into on the road - Jiang Xizhe. Jiang Xizhe and I had been quarreling since we met. Later, by coincidence, we became his secretary and lived in his house, until we were divided into the same class. One day, Kang Hee-cheol confessed to me just because I looked like the person he once loved. Later, due to a misunderstanding, something happened that shouldn't have happened - they fell in love with someone else! The disasters along the way were endured again and again. Where will we go from here?