Dong Yi - Season 1 Episode 43 King's Cover Up
Overview: Dong Yi finally tells the truth about her past. But, the King tries to help Dong Yi by seeing Gae Doo La who explains that her father doesn't kill Chief Seo's father. The King then announces that Dong Yi is innocent and knows nothing about the Swordsmen Society. But, she then hands herself to the police because she doesn't want to ruin the King's reputation. The King tries to stop her but to no avail. Chun Soo is also get arrested.