A story of intertwined love among four people who express their feelings inwardly rather than outwardly. 'Dain' wants to get married, but 'Wooyoung' is unsure about marriage. 'Woojung', Wooyoung's friend, has a crush on Dain, and 'Dabin' has a crush on Wooyoung, who likes Dain. Where will their hearts lead them? These individuals try to find answers only within themselves, stemming from a single mistaken memory about each other. Just as we often reduce our words and think alone when faced with events, each person involved has different thoughts and desires different answers.