Hwan gives Jae Yi a second test. She must figure out why the messenger he sent to Master Min's house was killed, and Jae Yi finds out it has something to do with Hwan. Finally, Hwan gives the last test which is to solve a serial murder case. Now Jae Yi must face her fiancé.

Hwan, Jae Yi, Myeong Jin and Ga Ram finally meet. They head out to solve the Cardinal Point case. Meanwhile, Seong On feels humiliated since he's competing against Sun Dol and feels upset when he sees Hwan and Sun Dol together.

Jae-yi proves herself by solving the Cardial Point case and Hwan starts to trust her. Hwan listens to what happened to Jae-yi's family and trusts that she is innocent. Seong-on and Jae-yi run into each other by accident and she finds out Seong-on has been carrying something that has something to do with her.