Watch Can You Hear My Heart? Online - Full Episodes

A heartwarming story begins with Woori, a bright girl who lives with her new family after her deaf mother marries to a dim-witted but kind stepfather, Bong Young Kyu. In addition to the new family, there is Bong Maru who has been raised by his grandmother and Bong Young Kyu. Bong Maru becomes ashamed of his family as he gets teased by his peers because of his dim-witted father.

On the other hand, Cha Dong Joo is a boy born into a family whose grandfather owns a cosmetics company. He meets Woori at a school playing piano and promises Woori he would teach her how to play the piano one day. At the same time, Bong Maru meets Dong Joo's parents and appreciates the warmness from Cha Dong Joo's mother, Tae Hyun Suk that he desires to become a part of the family.

A fire spreads in the factory where Woori's mother works at and she passes away after she barely escapes. On the same night, Dong Joo tries to sneak out of his house to keep his promise to Woori. During his attempt, he accidentally falls to the ground while hitting his head. As he wakes up in the hospital, only Cha Dong Joo and his mother discovers he is permanently deaf. Tae Hyun Suk finds out her husband had an affair with his secretary, and fathers a child who happens to be Bong Maru. Maru runs away from his family after promising Woori that he'll come back and joins Dong Joo and his mother to live in Saipan together.

As a plan to take revenge on her husband, Tae Hyun Suk raises Maru and have Dong Joo act like he has normal hearing so she can take away the company from her husband. The story continues to the future as a love story develops between Woori and Dong Joo while family conflicts arise and resolve between the two families.