The commotion in the Nether Emperor Demon Realm had been noticed even by the outside Demon Realm.
Demon Flame Supreme strode over with a stern face, his gaze like divine flames that could burn everything to ashes.
"Elder Sword, why have you come to wreak havoc in my Demon Realm?!"
The moment Demon Flame Supreme stepped into the Nether Emperor Demon Realm, his words resounded in every direction.
He could sense that the power erupting within the Nether Emperor Demon Realm belonged to Sword Heart Supreme.
This shocked Demon Flame Supreme greatly. Ever since they had emerged from the Dominion Road, there had been no further news of Sword Heart Supreme. Even supreme experts of the Tenth Heaven like himself and the Devil Ancestor had no idea what Sword Heart Supreme had been doing.
Yet Demon Flame Supreme had suddenly discovered a terrifying power erupting within the Nether Emperor Demon Realm, completely identical to Sword Heart Supreme's power!
How could Demon Flame Supreme possibly remain seated after that? He immediately rushed over.
He had some conflicts with his master, Nether Emperor Demon, and had not visited him in the Nether Emperor Demon Realm for many years.
Previously, he had sent Mu Qing and the others to the Nether Emperor Demon Realm because he intended to use his master's hand to kill them.
However, Demon Flame Supreme likely never could have imagined that Nether Emperor Demon, a member of the Demon Race, would suddenly become curious about the outside world. He had not killed Mu Qing at once, ultimately allowing Mu Qing to crush the sword light.
"Demon Flame?"
"Your strength..."
Nether Emperor Demon stared at Demon Flame Supreme in stunned disbelief. After sensing the terrifying aura emanating from him, he swallowed hard, his face filled with shock.
As Demon Flame