Try Dung

Nascent soul realm cultivators weren't anything uncommon or surprising for the kings and patriarchs here. 

What was, though, was the appearance of the Nascent soul realm cultivator.

The Nascent soul realm was a unique point for the cultivator during which their physical appearance was fixed. They would keep on looking like that until they reached the end of their lifespan, after which they would age rapidly.

Other than this, one could also age due to injuries and other difficulties. 

But in the case of the young girl in front of them, they were extremely sure that she was really young and not just due to her cultivation. Even without seeing her bone age, they could just analyze her demeanor and estimate that from their appearance.

'How old is even she? Sixteen seventeen? Even if she reached the Nascent soul realm recently, this is still really fast.' The patriarchs were stunned.