Keys to the Heart
An older brother is a washed-up boxer. His younger brother is a genius pianist with physical disability. The brothers make up through their mother who is full of stories of her past.
Kim Jo-ha
In-sook
Jin-tae
Ga-yool
Ms. Hong
Soo-jung
Dong-soo
Chief Kang
Yougn In-sook
Bok-ja
Bok-ja's Guard
Eun-ha
Sky Lounge Manager
Tae-gu
Young Jo-ha
Policeman
Eun-ha's Boyfriend
Big High School Student
Moon Sung-gi
Police substation officer
