Han YaeWon is attempting to flee from the intimidating Ji EunSong after a quarrel on an online forum, but she accidentally locks lips with him as she falls onto him. EunSong insists that she accept the responsibility of dating him, and even marrying him eventually, as he has never before held a girl's hand or shared a kiss without the intention of marriage. YaeWon initially views him as an insufferable jerk, but as she grows closer to him, she realizes that perhaps all EunSong desires is a person who truly cares for him.