Song Na Young and her husband, Jung Sung Min, desperately want a child but her husband is unable to get her pregnant. Na Young suddenly loses her husband in an accident and she gives birth to her daughter. What she does not know is that her husband's three friends donated sperm to Sung Min so that she can get pregnant. The father of Na Young's child can either be Han Soo Hyun, Choi Kwang Hee, or Na Hwang Kyeng Tae.
