Kim Chunchu is the grandson of King Jinji, but when his grandfather is overthrown, Chunchu is denied the chance to become a successor to the throne of Silla. He later meets Kim Yushin, and the two men begin a friendship. Chunchu later becomes King Muyeol, the 29th Korean monarch who leads the unification of three ancient kingdoms - Goguryeo, Baekje and Silla, while Kim Yushin becomes one of the greatest generals in Korean history.
Choi Soo-jong
Chae Sang-woo
Kim Yu-seok
Noh Young-hak
Lee Young-ah
Park Joo-mi
Hong Eun-hee
Jeong Dong-hwan
Jung Da-bin
Lee Jong-soo
Grina Park
Choi Il-hwa
Kim Ye-ryeong
Choi Cheol-ho
Lee Se-young
Lee Dae-ro
Hong Soo-ah
Heo Jung-min
Kim Min-ki
Kim Hyun-soo
Park Joo-mi
Yeseo