When the king of Goguryeo dies suddenly, Queen Woo becomes the target of princes and their tribes who seek the throne and power, and the best way to protect her life and position is to marry one of her late husband's brothers within 24 hours.
EPISODE 1
Episode 1
Queen Woo-hee and Prime Minister Eul Pa-so occupy the palace in King Go Nam-moo's absence, but many begin to conspire for power.
EPISODE 2
Episode 2
King Go Nam-moo is poisoned and dies, leaving Queen Woo-hee vulnerable, and Moo-gol helps the Queen flee to meet the Third Prince.
EPISODE 3
Episode 3
After meeting the Third Prince to initiate the levirate marriage, Queen Woo-hee thinks he's unworthy of being in power.
EPISODE 4
Episode 4
After hearing the news about King Go Nam-moo, Yeon Bi of Jolbon, who eyes for the throne, rushes to make her first move. Queen Woo-hee seeks refuge when she's pursued by groups of assassins.
EPISODE 5
Episode 5
The queen heads for Ba-i-tu, fleeing from the White Tiger's fierce pursuit; in the castle, lily of the valley and medicine is found in Woo Soon's room.
EPISODE 6
Episode 6
Noe-eum, who lost his son at Ba-i-tu, yearns for revenge against the queen; the queen barely makes it to Fourth Prince's palace and finally meets Yeon-wu.
Jeon Jong-seo
Kim Mu-yeol
Ji Chang-wook
Jeong Yu-mi
Lee Soo-hyuk
Park Ji-hwan
Jeong Se-Gyo
Ok Gwang-hui
Lee Byoung-hak