Haechi - Season 1 Episode 31
Overview: Prince Milpoong murders a guard in the court palace, and the guards issue an emergency. The Crown Prince swears to make Prince Milpoong pay for his crimes. Dal Moon tells Yoon Yeong that he had to deceive Prince Milpoong to save her and help the Crown Prince. Byeong Joo is arrested but refuses to admit his crimes and instead says Moon Soo would have done the same thing. The king announces that the treason case was fabricated.