The Soron and Noron are fighting against each other for the right to investigate after Shin Bok's dead body has been found. However Lee Sun decides different and orders Gye Hee to investigate.

Unable to believe Gye Hee's report, Lee Sun orders for a re-investigation of Heung Bok's murder case.

To find the truth behind Heung Bok's murder case, the Crown Prince sneaks Ji Dam out of the palace to avoid suspicions from the Crown Princess. Meanwhile, the Crown Prince decides to conduct a secret investigation with Ji Dam…