The story of a down-and-out boxer reconnecting with his estranged, younger brother who is a gifted pianist with savant syndrome.
金趙夏 (李炳憲 飾）曾經拿過WBC亞洲拳擊冠軍，但現在過著打零工的潦倒生活，一個偶然之下與17年未見的母親仁淑（尹汝貞 飾）相遇，本想裝作不認識，但為了存下前往加拿大的經費，只好隨著母親回家，並與患有自閉症及「學者症候群」的同母異父的弟弟吳振泰（朴正民 飾）一同生活，譜出溫暖的生命樂章的故事。
A washed-up boxer, Jo Ha, has lived his life relying on nothing but his physical strength. His champion glory lasted only a moment, and now pride is all Jo Ha has. He runs into his mom who left him when he was little and comes to live with her and Jin Tae, the younger brother who always seems awkward except for when he plays the piano. The autistic savant, Jin Tae, shows brilliance in playing the piano and video games and cooking ramen. He is at first scared of his older brother, who insists on swinging his fists at people for what he wants. Reunited with each other, the two brothers learn what it is to be a family.