It is the 7th year of the Non-marriage law. Heon hears the rumor that the King is impotent and goes undercover with Shin Won. So Rang gets caught red-handed and changes suddenly.

Heon hires So Rang as a scret court-lady and orders Shin Won to protect her. Shin Won recalls someone whenever he sees So Rang

So Rang tells Heon to go out and find the source of the ghost sound that bothers him. When they reach the pond, something flashes through So Rang's mind…!