Who were you? Oops! I forgot the wedding! One day, Jeong-eun (Kwak Ji-min) shows up in front of jobless youth Gi-seok (Kim Min-joon) who’s only specification is his family register. She abruptly asks him about his the marriage with her twin sister So-eun (Kwak Ji-min). Gi-seok looks at her absurdly as they smile awkwardly at each other then he finally remembers the marriage he had with some girl a few years ago, lending her his specifications. (http://www.hancinema.net).