Inside the cave.
Zhang Buku wielded the stone axe, continuously swinging it. His movements were fierce, his footwork mysterious, and his afterimages appeared in succession, making it seem as if several clones of him were left in the cave.
Since he arrived at this cave and learned the Heaven-Cutting Divine Axe, he hadn't gone out again.
Relying on cultivating the Heaven-Cutting Divine Axe, his Qi-Blood rapidly strengthened, and he had completely fused with the power of that mysterious demon core.
He didn't notice a sparrow watching him from a distant rock.
Watching Zhang Buku's posture, Gu An felt gratified.
This kid still had some talent!
At least he hadn't wasted the effort of nurturing him!
Gu An also noticed the change in Zhang Buku's bloodline. This change wasn't evolving towards the Six-Headed Sea Dragon but was another type of demonic aura he hadn't seen before.
He suddenly thought of the Evil Demon.
