I can't understand one thing... Isn't Ein run away from his previous master, because of sexual harassment? So, he run away from one perpetrator to second, and he was okay with this new conditions? However, I understand he have better "money" conditions in here, but when I think about it now it have less and less sense
I think it was very vaguely mentioned that Ein didn't run away. He's a slave, so running away would mean being hunted down and punished. I think it was mentioned (or implied) that the father of his previous master sold him, because that guy was absolutely obsessed with Ein to like, a really extreme degree. The father sold Ein to separate them, probably in hopes that his son's obsession would go away once Ein was gone.
Fucking Yahwi sunbae, still doing what he want without reckoning with others.
The same pattern occurs all the time, it's slowly getting boring and uninteresting