Yu-Jin Jeong

Yu Jin currently manages her own architecture firm and is engaged to Sang Hyuk, her childhood friend. She goes to a work meeting one day and meets a man, Min Hyung, that resembles her high school boyfriend, Joon Sang, that she presumed was dead after an accident. The plot revolves around her intuition that Min Hyung is Joon Sang and how her relationships with her friends from high school change. After it is revealed that Yu Jin and Joon Sang are in fact, not siblings, the two of them have a large marriage ceremony at the end of the series surrounded by all of their friends and family.