Dong Yi fails the test. So, she begs her superior for another chance. The Queen is angry when she heard about it and scolds Investigator Yoo because of her behaviour. Then, Dong Yi is given 3 days to prepare for the test and it will be invigilated by Lady Jeong. While she studies for her test, the King turns up to help her. And this time, she passes the test. Meanwhile, the King decides to put Namin instead of the Seoin in power and Jang Ok Jeong will be made concubine. Then, Cheon Soo arrives at the palace as Chief Seo's helper. Even though they work in the palace, they keep missing each other. Young Dal who worries about Cheon Soo, searches his room and finds his Sword Fraternity headband. He takes it to Dong Yi in order to investigate who he is. She is shocked and then rushes to find Cheon Soo.