At the three Demon Emperors side-
The orb that showed the battle cracked and exploded after Chiyou and Tuazon Kuo's attack.
All three of them silent right now,
After a few seconds, Yang Wang the 2nd Demon Emperor spoke
"that was your void art right?" Yang Wang asked the first Demon Emperor Tuazon Kuo.
Tuazon Kuo said nothing, he remained silent
Liang Peng, the 2nd Demon Emperor asked "was the pure heavenly Qi?"
both Demon Emperor is asking questions to Tuazon Kuo, he has to speak something.
Tuazon Kuo took a deep breath and then said "yes, that was my one of my void art,
Roar of The Black Dragon"
Hearing this, Yang Wang immediately asked "Then the attack by him (Chiyou) is pure heavenly Qi?"
"no that is not heavenly qi?" Tuazon Kuo replied
"Are you kidding me?" Yang Wang asked in anger
Void art contains various attacks that can be only used when one has pure demonic Qi in them, and it can't be stopped by any means.