Nine Yin was not a member of the Darkness Clan.
His true form was a ferocious beast born of the yin qi of heaven and earth. Later, he had clashed with the Church of Light and killed many Light cultivators.
Only then had he been listed among the Eight Great Heresies.
The main reason Hei Xuan did not get along with him was that they were both powerful ferocious beasts, competitive and combative, and had fought several times.
Had that been all, it would not have amounted to much.
The main issue was that Hei Xuan utterly loathed Nine Yin's methods.
Nine Yin cultivated the Dao of yin qi.
The Nine Yin Heavenly Art he cultivated was stranger still, allowing him to absorb other cultivators' yin essence to strengthen himself.
The yin essence of certain women was particularly nourishing to Nine Yin. It was said that he had been listed among the Eight Great Heresies after absorbing the yin essence of a Saintess of the Church.
Hei Xuan found such methods deeply repugnant.
Only after hearing Hei Xuan's account did Chu Kuangren understand.
Bang!
A burst of violent energy exploded in the void.
Two figures were sent flying apart.
They were Chi Yun and Yu Nüe.
The two were fighting.
"Again!"
Fierce battle intent shone in Chi Yun's eyes. His domineering Dao laws transformed into streams of crimson flame that bombarded Yu Nüe relentlessly.
Yu Nüe dodged left and right, looking utterly bedraggled.
After a long while, Yu Nüe conceded defeat.
He looked at Chi Yun and said, "Your strength commands my admiration."
"Hmph, you're simply too weak."
Chi Yun snorted softly, then looked at his hands. "The Great World of Hongmeng has reopened. I will rule this epoch!"
He brimmed with ambition.
Beside him, Yu Nüe inwardly rolled