Isn't that obvious!
After all, he's not the one trapped by bloodlust, so whichever choice he makes doesn't really matter to him.
And since there's no advantage or disadvantage, why would he choose such a disadvantageous option?
"You say 'rescue'? What exactly should I do?"
Ultimately, this shouldn't have been a multiple-choice question from the start.
Herbert is the Prison Warden of the Third Commandment Hall, not an Inquisitor or Executioner.
His responsibilities never included torture and abuse.
How to rehabilitate and reform these dangerous Monster Girls is Herbert's true work.
If Nenasha truly has a way to suppress Eliza's symptoms of Thirst for Blood Syndrome long-term, then it's an astonishing ability indeed.
Herbert could use this ability to keep Eliza in line, making her obediently accept his loving reform.
So, it can be foreseen that—once Eliza is fully reformed by Herbert, his authority could be elevated even more.
