>>5512306zesshi zetsumei she's from overlord. one of the black scriptures from the Slane Theocracy. she's the chick with white and black hair. she has like a single scene in the anime so far. but she's around the strength of the Platinum Dragon Lord.
here's a quote from the wiki: "Although Antilene is willing to fulfill her duty at home, she still yearns to go outside and look to challenge potential foes who're likely more powerful than the former, strong enough to outmatch and impregnate her."