On a journey to find where she belongs, Ok-nyeo becomes a crusader for the oppressed peasant class.
EPISODE 1
Episode 1
Yun Won-hyeong meets his sister, the queen, who asks about a girl's whereabouts; he assures her that the child is dead; when Ga-bi dies in childbirth, the prison official Cheon-deuk finds himself in charge of the motherless girl; he names her Ok-nyo.
EPISODE 2
Episode 2
Yun Won-hyeong has her fortune read by Ok-nyo and learns about her past; an inmate of Jeonokseo Prison asks Ok-nyo to deliver a letter for him but trouble awaits outside the prison walls.
EPISODE 3
Episode 3
Ok-nyeo finds a hidden cell beneath Jeonokseo Prison; inside is Park Tae-soo, imprisoned for 20 years; he initially wants to die, but soon discovers a reason to live.
EPISODE 4
Episode 4
Ok-nyeo seeks answers about her mother's death, showing rings to Park Tae-soo; she gains a clue and decides to become a police inspector to uncover more information.
EPISODE 5
Episode 5
Ok-nyeo accepts a secret spy position against her mentor's wishes; her final training stage is a dangerous real-world field assignment, testing her skills and resolve.
EPISODE 6
Episode 6
Ok-nyeo passes her spy test and gets her first mission; she encounters Yoon Tae-won, whom she knew from Jeonokseo Prison.
Jin Se-yeon
Go Soo
Choi Tae-joon
Jung Joon-ho
Park Joo-mi
Lee Byung-hoon
Choi Jung-Kyu
Choi Wan Kyu
Kim Joon-seok