Park Yoo Ha (Han Ji Hye) is a medical student who works  hard to become a doctor and she has no interest in other people. Her father raised 4 children by himself and her oldest sister also sacrificed for the family. Suddenly, her father marries a woman rich enough to own a building. Meanwhile, Jung Eun Tae (Lee Sang Woo) works as a doctor. He volunteered for performing medical service abroad and later return back to Korea. Jung Eun Tae, like his father has no interested in marriage. They both placed priority on their medical work over family.