These demon humans practicing their craft were all new disciples recently taken in by Wulingzhu, the former leader of the forty-seven islands of the Little Antarctic.
Since Shi Feiyang sent demon soldiers to sweep through the Forty-Seven Islands, taking them all down and turning them into an external port for Outer Heaven Divine Mountain, the previous demon evils of the Forty-Seven Islands scattered like birds and beasts.
Over these years, Wulingzhu had been assiduously practicing the Demon Path Great Technique, feeling his mana getting stronger and stronger, a far cry from his past self.
Of course, he knew the gap between himself and Shi Feiyang was widening. Not to mention Shi Feiyang, even those who had recently joined, like Lin Han and Shi Sheng, could beat him black and blue.