Cha Jin Wook is a son from a wealthy family who runs a large company. He usually only pursues short-term love, but when he meets Lee Yoo Mi, who has never had a boyfriend before, he changes. In a dating world full of busy people who tend to flirt and chase “some” relationships rather than having meaningful connections that allow them to show their true feelings, this couple has a one-night stand. They meet again three years later, whereupon they kick off a shaky push-pull romance that’ll keep them on their toes as they fall in love.