Sim Chung-Yi has an absolute sense of sight which allows her to identify thousands of colors. She also has a bright personality. Sim Chung-Yi meets Ma Poong-Do who is a pianist. He is highly skilled on the piano, but he receives criticism that he has lack of sensibility. Sim Chung-Yi and Ma Poong-Do develop romantically. Sim Chung-Yi also tries to find a secret of her father.
Han Seung-Joo is a single woman in her mid 30's and she works as a PD at a broadcasting station. She does well at her job, but she is not nearly as good when it comes to housework. Han Seung-Joo has a hard time dealing with social prejudices about single women. To get the position of a "married woman," Han Seung-Joo marries Oh Jak-Doo who lives in the mountain. Their marriage is not based on love, but their relationship develops romantically.
Through the comparison of conditional and pure love, this drama looks into the understanding of realistic love and marriage by the young generation today and looks for the true meaning of love and marriage.