You two met the ancestors inside the forbidden area of the royal academy," said the Imperial Emperor. "This is impossible. Without my royal decree, the caretaker will not allow anyone to enter the forbidden area."
Emperor Ye Wang couldn't believe that someone was able to enter the forbidden area for the royal family without the permission of the current king. The requisite to enter the royal library's forbidden area is simple. Either the current king comes in person or brings a royal decree written by him. However, the current emperor had forgotten one thing. The Forbidden Area in the Royal Library was created by the First Empress with the support of the First Emperor. It is impossible for creators not to have their own key to their creations.
