The duo noticed that William wasn't intimidated by their presence. They tried to check his Cultivation and found that he was either concealing his Mana or was just a normal person. Most likely the former.
The same Cultivator spoke again, "My name is Bernard. What is your name? Also, this trial is open to our Sect only, as agreed upon by the Council of Sect Masters."
"William. Council of Sect Masters? Never heard of it, just let me in."
Bernard's eyebrows raised, "How can you not know about the Council of Sect Masters? They're quite literally the most powerful group of Cultivators on the Continent other than the Yu Royal Family." he ignored the part where William asked to be let into the trial.
"Don't care. If you're not going into the trial, then I will." he started walking towards a stone staircase in the center of the room.