"The drama follows the story of a father and three brothers."
Son Jin-young
as
Hwang Seok-jeong
Jung Si-a
as Gye Na Ri
Kim Won-jun
as Dokko Dong Baek
Park Jin-joo
Park So-eun
Shin Ju-hwan
Hwang Mi-young
as Double Dragon / Ye Rim
Ji Chan
Min Ji-Young
as In Jo Hee
Choi Woong
as Hwang Jun
Jang Do-yun
as Dokko Mo Ran
Jung Ji-so
as Park Bok Nam
Jeong Ji-sun
as Na Chu Nam
Kim Bo-ra
as Dokko Eok Sae
Cha Young-nam
as Kwak Gook Kwang
Chae Jong-hyeop
as King Sejong
