VenusBlood DarkChronicle Episode:6 Ryoshuu no Reijou-tachi

Defeated by the Dark Lord Elea in Necrograd, the only fate that awaits the defeated women...is a truly tragic, undesirable one. With their minds and bodies forcibly altered, irreversibly modifying their personalities in order to degrade them, all to satisfy the curiosity of the twisted scientist Elea. The experiment continues endlessly, until the both of them could no longer even remember their affection for the man known as Leonhardt anymore...