Yu Sheng certainly knew the Inference Star Body was the Dark Angel, but that was not what he wanted to ask.
"Dark Angel" is how common people refer to Inference Star Bodies—all invaders from outside the world are called Dark Angels, Heka Star, Beauty God, Tree Angel, Shadowless Skeleton... they share such common names.
But after interacting with Anka Aela, Yu Sheng realized the truth behind these "Otherworldly Invaders" might be far more complex than people imagined; "Dark Angel" is just a generic term, and understanding their essence is the only possible way to resolve this "invasion phenomenon."
In this regard, "Yun Qingzi," who has already achieved a high level of symbiosis with the Inference Star Body, obviously knows something.
But unfortunately, "Yun Qingzi" doesn't seem inclined to cooperate.
He even sensed the "erosion" Yu Sheng was conducting, sensed the blood that was incessantly seeping deep underground.
Within a millisecond, the Inference Star Body reacted.