What Hera said right now and what she told me before weren't the same. Sure, a sizable chunk of her explanation was the same now as it was before, but as always, the devil was in the details.
It wasn't the rampage of the monsters that enslaved Hera's folks. It was Hera's folk that rampaged in the world they ended up in after the collapse of their own world. Her people weren't slaves but the real persona behind each of the monsters.
'I wonder if their experience, techniques, and personalities affect the way they act like the monsters,' I thought, a sudden question appearing in my mind.
But there was hardly any point in trying to figure it out right now. After all, I still had to go through the extensive questioning of Hera to gain any ability to judge that at all.