Nux's eyes widened in surprise. 

"Y-You… you are a child!?"

Ember shouted in shock.

This face… she was sure that it was no older than 25!

And this man is an Expert Stage Cultivator!

What the hell is happening!?

"No, I am not a child, I am an adult.

I apologize if you misunderstood."

Nux denied.

"Who do you think you are fooling!? Cultivation might extend your lifespan however, you still get older.

A 60-year-old Cultivator may look like he is in his late 20s, however, this…

You don't even look like you are 20!

Do you think I am a fool!?"

"No, that is no-"

"No! no, you can't fool me!

Alright, let's do it.

Let me see your bone age!

This way, I will be able to confirm it."

"…"

Nux turned silent.

Bone Age, in this world where Cultivators roam around freely and a 100-year-old man, might look like a handsome man in his early 30s, the concept of Bone Age was very popular.

No matter how much one cultivates, bone age was something unchangeable.