Pink Lipstick

Yoo Ga-eun is a sweet-natured girl who married her college sweetheart, Park Jung-woo. However, she later discovers that her husband had an affair with her best friend, Kim Mi-ran, and that their adopted daughter Na-ri is actually Jung-woo and Mi-ran's lovechild. After she and Jung-woo divorce, Ga-eun meets Ha Jae-bum, and they fall deeply in love. But when she learns that Jung-woo plotted her father's downfall, causing her brother Sung-eun to die in prison, Ga-eun sets aside love to wreak her revenge against Jung-woo and Mi-ran. She starts by getting engaged to Maeng Ho-geol, a wealthy clothing retailer who is Jae-bum's uncle. [About] Pink Lipstick is a 2010 South Korean television drama starring Park Eun-hye, Lee Joo-hyun, Park Gwang-hyun and Seo Yoo-jung. It aired on MBC from January 11 to August 6, 2010 on Mondays to Fridays at 7:50 a.m. for 149 episodes. [Source: Wikipedia]