The story explores the relationships between generations in a family; between parents, parents and children, and all the process by which all of them learn to relate to each other. Park Yoo Ha (Han Ji Hye) studied hard in medical school and finished her intern course. She works hard to become a doctor due to her father. Her father raised 4 children by himself and her oldest sister also sacrificed for the family. She is not interested in other people. 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, but he comes back to Korea. He is not interested in marriage, because his father placed priority on his medical work over family and Jung Eun Tae believes he is like his father.