The Flower in Prison: Season 1, Episode 20
Lady Jung realises she should have gotten rid of Ok Nyeo a long time ago. She asks Lord Yoon to make her become a slave in return for setting Tae Won free. Meanwhile, Ok Nyeo’s friends are so worried she might become a slave that they plan to help her escape. However, she doesn’t want to inconvenience others who are left behind, hence she stands the trial.