A forced marriage between Seulgi and Irene just because of one foolish mistake when they were drunk that night. Seulgi might have loved Irene since the very beginning, when the word of love felt foreign for her while Irene never wanted to get close to Seulgi just because that woman is weird and too obssesed with her. Irene was furious and kept on cheating on Seulgi until one day when her world fell apart and only Seulgi who could accept her. Would it be too late to atone her sin and love Seulgi back? Or will Seulgi have it enough and choose to leave for good?