Family relationships can be complicated and tortured. Bong Woo Ri (Hwang Jung Eum) is a loving, dutiful daughter who does her best to accommodate the needs of her deaf mother and mentally challenged stepfather. After a tragedy that takes the life of her mother, Woo Ri’s stepbrother, Bong Ma Roo (Nam Gung Min), leaves after promising to come back but never does. As Woo Ri grows up and searches for her stepbrother, she meets Cha Dong Joo (Kim Jae Won), a young man from a wealthy family who is tortured by family secrets that he witnessed as a boy. Although Dong Joo lost his hearing in a childhood accident, he has learned to compensate for his disability so that he can keep his deafness a secret from those around him. Dong Joo and Woo Ri learn that they are connected by Ma Roo, who has taken on a new identity as Jang Joon Ha. How will the three reconcile their unexpected connection?