If it weren't for the fact that he had officially advanced to a Second Rank "Iron Armor," with his original First Rank strength, he likely wouldn't have been able to discern Ji Yang's true purpose, let alone easily handle the "Lion Dance," a stitched creature formed by the Ji siblings.
That creature is part of "Yang God·Purification," which isn't too difficult to manage since it's only a green-quality monster and has lost its original Second-order Erosion Crystal, so it doesn't have much combat power.
However, the other part, which belonged to her brother, was actually a "Demon Chosen."
He hadn't had time to concern himself with this earlier, but now that he thought about it, Xu Shu was quite surprised.
"Chosen" among demons seemed to hold a status similar to titled nobles in the "alien species" path, starting from at least the "flawless level."
Moreover, the Chosen were unique in that they possessed "Curse Crystals," existing somewhere between human and non-human.