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-seun..