Based on the longest-running web-based comic series "Ma Eum Ui Sori" in Korea, "Sound of your heart" is a story about Cho Seok, an aspiring comic writer, and his strange family.
Sung Hoon
Jo Suk
Kwon Yu-ri
Choi Ae Bong
Shim Hye-jin
Jo Suk's Mother
Tae Hang-ho
Jo Joon
Ju Jin-mo
Jo Suk's Father
Ji Soo-won
Ae Bong's mother
Park Cheol-min
Ae Bong's father
Kim Sung-Won
Boo Wook
