Chan-seung and Ah-yeong met at a nightclub, they had a hot one-night stand. After a few days, chan-seung was surprised by the fact that Ah-yeong was a junior of the same college, but the relationship will remain confidential within the two. Meanwhile, Yoo-jin who has loved Chan-seung since childhood entered the same college to complete her love for Chan-seung. One day Chan-seung met his ideal woman Min-jo and tried accomplish love with her. Ah-yeong is cool and sexy, Yoo-jin is cute and attractive and Min-jo is the ideal woman. Chan-seung should make love with whom?