So the gang warps to that womans world but Nerva go LOL and fucks up the warp causing the gang to split up one goes to the world of that girl and the rest went to a random other world
In this world that is very dark literally and the first modern tech level setting in the story, it turns out the woman is one of the top AI created by a batshit crazy mad scientist named Belphomet who has turned his country? planet? into a communist dictatorship on steroids. The AI known as Tetra, Mono and Aenea developed sapience by sheer random chaos as a feat of Belphomet's IQ, and they go fuck you dad what you are doing is evil and wrong so he lets his princesses lash out in rebellion and makes them think they ever had a chance while he slowly builds up resources from the aforementioned evil bitch Nerva. The gang goes fuck you to Belphomet and tries to jump him but Nerva shows up and grants him power and he fucks off to the random world the rest of the gang went to.