This takes place in the future, where mankind was forced to settle down underground in the Ark, because of machine like beings called Raptures that have take over the surface. Nikkes, humanoid women/waifus with human brains, were created to fight the Raptures, but are often under discrimination. Squads of Nikkes are sent up to the surface under a human commander to try and reclaim the surface. Modernia was once a Nikke who protected and cared about you. You often bandaged her wounds (this will be important later). She then got corrupted by the Raptures and you had to execute her. Months later you met her again, but she had become a heretic (A Nikke that was fused with Rapture parts to be a very powerful fighter for the Raptures). You saved her and she became Marian once again, although she is much more powerful now. Because of this newfound power, Marian was hunted down by the Ark’s government who wanted to find the source of this power. This is for you to solve