The story begins when Jun-Sang, the son of an eminent musician, moves to Chuncheon, a rural city in South Korea. As an extraordinarily talented student, Jun-Sang is welcomed by his fellow students as well as teachers, but remains a quiet, introverted young man. As a result of his belief that his father is dead, as well as conflict with his mother, Jun-Sang believes that no one truly loves him.
One day on the ride to school, Jun-Sang's classmate Yoo-Jin interrupts him on the bus. Jun-Sang soon falls in love with Yoo-Jin, who opens herself to him with an innocent heart. Their love, however, is cut short after Jun-Sang is involved in a serious auto-accident and, due to brain damage, is unable to recall his past life.
Jun-Sang's mother, desiring Jun-Sang's love and respect, has Jun-Sang brainwashed by a psychologist, so that Jun-Sang will not remember his painful childhood, as an illegitimate child. As a result, Jun-Sang's memories prior to the accident are erased. Jun-Sang's mother decides to move to the United States with Jun-Sang, where he can start a new life under the identity of Yi Min-Hyeong. His friends and teachers are told that Jun-Sang is dead.
Ten years later, Min-Hyeong is an award-winning architect in the United States. He does not remember anything about his life in Korea. He is completely different, an open-minded person who cares about other people, including his mother. He returns to Korea and Yoo-Jin sees him on the street, prompting her to put off her engagement to childhood friend Sang-Hyeok. Little does she know that Min-Hyeong is dating her friend and sometime rival Che-Rin. The story's plot intensifies when Yu-Jin begins work at the firm where Min-Hyeong is employed, and tries to find out if he is her lost lover Jun-Sang.
it is really nice drama highly recommend ... it is the one which kept me watch more and more korean drama.yeahhhhhh thats true .. and the actors are really good on it. and also the story .. i watched several times and every time interested in watching it