Family relationships can be complicated and tortured. Bong Woo Ri 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 step-brother, Bong Ma Roo, leaves after promising to come back but never does. As Woo Ri grows up and searches for her stepbrother, she meets Cha Dong Joo, 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?