As a high school girl, Yeong Shim fells in love with a college student named Im Ji Wun. They promise to get married but Ji Wun gets diagnosed with a heart disease that is hard to fully cure. When her parents strongly object to the marriage, Ji Wun disappears. Yeong Shim marries Min Ho whom her parents introduce. When Yeong Shim gives birth to Ji Wun’s son, trouble brews for her marriage.