After suffering the heartbreak of her first love and falling ill, Hyun Joo recovers thanks to the devoted care of the young doctor Sung Ho. On the recommendation of her junior, Young Ok, Hyun Joo moves to Seoul to manage a home for mothers and children, and Sung Ho agrees to become the home's responsible doctor to work alongside her. The home managed by Hyun Joo belongs to Young Deuk, Young Ok's brother, whose mother wishes to marry Young Deuk to Hyun Joo. However, Young Deuk is secretly in love with Jung Hee, an employee at his factory, and wishes to marry her, but faces opposition from his family, causing him distress. Upon learning this truth, Jung Hee leaves Young Deuk, hiding her pregnancy, and disappears without a trace. Sung Ho confesses his love to Hyun Joo, but although Hyun Joo loves him, she rejects him, believing she does not deserve such love. Young Ok, who also likes Sung Ho, confesses her love to him but is also rejected. One day, Man Geun, Hyun Joo's old flame, appears, steals several months' worth of living expenses from the home, and flees. Hurt by Hyun Joo's repeated rejections, Sung Ho leaves for the countryside. Jung Hee, after leaving home, arrives at the home in an advanced stage of pregnancy, gives birth there, and then abandons the child before leaving. Hyun Joo, upon learning that the child is Young Deuk's, informs him and helps them meet. Young Ok realizes that Sung Ho and Hyun Joo truly love each other and gives up her own feelings. With Young Ok's help, Sung Ho understands Hyun Joo's heart. Returning to Seoul, Sung Ho and Hyun Joo finally find fulfillment in their love.