Geum Sa Wol (Baek Jin Hee) and Oh Hye Sang (Park Se Young) arrived at an orphanage on the same day and grew up like close sisters. But Hye Sang is adopted by Oh Min Ho (Park Sang Won) and Han Ji Hye (Do Ji Won) and ends up living a very comfortable life. Things get complicated because Min Ho’s first love, Shin Deuk Yee (Jun In Hwa), who happens to be Ji Hye’s best friend, secretly gave birth to his daughter, but the baby girl was accidentally switched at the hospital with another baby. Deuk Yee ends up marrying Kang Man Hoo (Son Chang Min), the family driver who throws away his first wife, Choi Ma Ri (Kim Hee Jung), to have a better life with Deuk Yee. Ma Ri became a mistress in Man Hoo’s new life but her son, Kang Chan Bin (Yoon Hyun Min), is raised as the legal son of Deuk Ye. While Chan Bin tries his hardest to be the dutiful son, Joo Se Hoon (Do Sang Woo), the son of a moneylender, is the opposite, trying to escape the life that his father created for him. When the truth comes out about Sa Wol and Hye Sang, can the two former orphanage sisters find their true place in life?