Otome Game no Heroine de Saikyou Survival - Vol. 3 Ch. 13

[Serenata]

That's nice, she's not even worth an interrogation, off with her head!

 

[Kampfarsch]

Why would this battle hardened grown woman have less pain tolerance than a child

 

[SpeedyAussie]

Why would this battle hardened grown woman have less pain tolerance than a child

I do understand your point but the thief didn't get the adrenaline and endorphin you get when you get stabbed. Also, we don't know just how much pain Aria has gone through. Not only training with Feld, but any other training after that + injuries.