The protagonists of this battle were Beigong Qing and the North Palace Great Emperor!
A true battle between sister and brother.
Yang Chen narrowed his eyes slightly and looked toward where Beigong Qing stood. The void there had already been obscured by an endless sea of flames.
However, with Yang Chen's cultivation, seeing the battle within was effortless.
Within the sea of fire, a phoenix and a feng cried out behind Beigong Qing, unleashing primordial flames.
These were Phoenix Sacred Flames, the supreme flames produced by cultivating the Phoenix Nirvana Art to its final stage.
However, the Beigong imperial family had inherited phoenix blood in their veins, so the North Palace Great Emperor possessed Phoenix Sacred Flames as well!
Yet the North Palace Great Emperor's Phoenix Sacred Flames were somewhat inferior to Beigong Qing's.
After all, the Phoenix Nirvana Art was the cultivation technique most suited to Beigong Qing's constitution. Even though the North Palace Great Emperor cultivated the Beigong imperial family's sole Immortal cultivation technique, the qualitative enhancement it offered was still somewhat less than that of the Phoenix Nirvana Art.
Moreover, if the Phoenix Nirvana Art could be cultivated to its later stages, even true Immortal cultivation techniques would fall slightly short.
Still, while the North Palace Great Emperor might not compare to Beigong Qing in terms of quality, his cultivation still suppressed hers.
Although Beigong Qing was at the late Nine Revolutions realm, she was still just a tiny step away from the peak of Nine Revolutions. And it was precisely that gap that leveled out the difference in quality between them.
Faintly, the North Palace Great Emperor was even suppressing Beigong Qing.
Within the sea of fire, the North Palace Great Emperor bathed in flames. Behind him, the phantom of a feng slowly emerged, flames burning