her son, Baek-ho. Dong-ji suffers under Mrs. Choi's abuse for a long time, but Mrs. Choi eventually sees that Dong-ji is a good person, and accepts both her and Baek-ho as members of the family. At the end of the series, Baek-ho is revealed to be the biological son of Man-soo. It is never revealed why Dong-ji never told this to anyone, or whether she knew it herself. With this, all opposition by Mrs. Choi is dropped permanently. In the final episode, we learn that Dong-ji is pregnant. Cast Main characters Han Ji-hye as Na Dan-poong Kim Ji-seok as Kang Baek-ho Jo Dong-hyuk as Na Seon-jae Na Dan-poong's older brother. Good looking and well-educated with an MBA from a U.S. school, he is a fund manager at a company. He is more ambitious than his government official father. Yoo In-young as Bong Soo-ah Bong Man-soo's daughter, who lost her mother at a young age. She briefly studied art in France, but dropped out and returned to Korea. Having grown up as a rich family's only child, and spoiled by her grandmother, she is very immature and selfish. She is vehemently against her father's remarriage, and treats her step-mother Dong-ji and step-brother Baek-ho coldly. She becomes infatuated with Na Seon-jae. Lee Young-eun as Hwang Ji-young Seon-jae's college sweetheart. Like Soo-ah, she is also an only child who lost her mother at a young age. Sweet and thoughtful most of the time, she still knows how to stand up for herself. She is very devoted to her boyfriend Seon-jae; unfortunately, her love is ruined by Bong Soo-ah's infatuation, who makes Seon-jae break off their relationship and marry Soo-ah. She works as a veterinarian at an animal hospital with her father, who is also a vet. Supporting characters Na family Kang In-deok as Na Gi-tae Seon-jae and Dan-poong's father. A stern disciplinarian to his children, and old-fashioned husband to his wife, Jong-soon. Works as a government official. He is very firm about what is right and wrong, and values modesty and humility. As such, his personality is somewhat inflexible. Kim Hye-ok as Lee Jong-soon Seon-jae and Dan-poong's mother. Sly, greedy, and phony, she is dissatisfied with the modest lifestyle she has with her husband, and is frustrated by his rigid personality. A friend of Dong-ji since junior high school, she felt better about her life to see Dong-ji suffer as a widowed, single