"Poof."
A crack suddenly broke open on the man's head, and a black single horn grew out.
A pair of metallic wings slowly emerged from his back. The silver wings slowly expanded, as sharp as blades.
Even more frightening, his skin was gradually transforming into a silver-gray color, becoming harder and more resilient.
The aura around him was increasing at a geometric rate.
The same transformation was occurring with more than two hundred others, who almost simultaneously began changing, all growing silver-gray metallic wings with horns sprouting from their heads.
"It should be due to the Human Race bloodline circulating in the same world."
Lin Xin understood. He had accepted these disciples from that world akin to the late Qing Dynasty, so it was normal for most of these disciples to carry a similar bloodline.
"It seems to have a profound aura, but without any evil chaos; it's likely a more rational bloodline."
He carefully evaluated and judged.