The Peak-stage Second-Circle Wizard didn't just have no nuggets; even the rod was gone.
After Aeliana's initial shock and surprise, her expression transitioned to disgust and contempt as she stared at the unconscious wizard.
Humanity had enough difficulties with procreation after mana transformed women into witches. If many men castrated themselves for power, the human population would dwindle even further.
Women didn't become witches by choice, but men had the choice to become wizards. Thus, they have practically sinned against humanity.
That said, Aeliana didn't really care about such things.
She only found the wizard repulsive because the wizard had become an existence that was neither a man nor a woman.
Nevertheless, Vaan thought nothing of it.
As such, when Aeliana noticed his calm indifference to the discovery, she couldn't but ask, "Aren't you surprised in the least, my Lord?