With Luhan gone, Seohyun hasn't been the same since. Drinking in a bar she come across an attractive woman named Yoona who seems to know alot when it comes to men. Feeling the need to help out this desperate woman, Yoona decides to give advice to Seohyun, trying to comfort her. As Seohyun begins to talk about her husband, Yoona notices that Seohyun's husband and the man Yoona use to go out with seem to have quite a lot in common........ Could it be a coincidence?