Hyung-Woo (Kim Tae-Hyeon) is the autistic son of wealthy department store Chairwoman Shin Jung-Ok (Kim Hae-Suk). One day, Hyung-Woo marries a nurse named Eun-Young (Shin Eun-Kyung). Being with Eun-Young, Hyung-Woo is able to express himself and open his mind to the world. Eun-Young, on the other hand, marries Hyung-Woo for money and revenge, but with time starts to love Hyung-Woo.
Hyung-Woo's step brother Jung-Woo (Kim Yu-Seok) was born as the illegitimate of Chairman Kang. Jung-Woo first dated Eun-Young, but later left her and married the daughter of a wealthy businessman. Between Jung-Woo and Eun-Young there was also a son.
Even though Hyung-Woo's mother bribed Eun-Young to marry her son, Mrs. Shin kicks Eun-Young out. Because of this, Jung-Woo becomes ill and Jung-Woo's mother is forced to bring Eun-Young back.
Jung-Woo decides to take revenge against his stepmother and blames her for his father's death. Na-Gyeong (Lim Ji-Eun) is Jung-Woo's wife. She had an affair. After she finds out that she is pregnant, she learns of the past relationship between Jung-Woo and Eun-Young. Na-Gyeong also suffers a miscarriage. Na-Gyeong blames Eun-Young for the miscarriage.
