[Atelier Hachifukuan] Superheroine Yuukai Ryoujoku 13 - Superheroine in Distress - BAD ENDING

Points I understood or at least hope I did are: A. typical heroine group vs alien villains plot but with hentai mixed in B. Every heroine that is able to defeat a villain often faces another villain that is either designed after scientist guy studies their powers or are geared up to deal with them (e.g. like how the blue hair girl nearly annihilated the scientist in the earlier chapters but got destroyed by the red costumed chick from the bad guy side) B-1. Because of this they get systematically captured so the purple haired heroine allows herself to get captured to save them from within C. The villains apparently (or at least their boss) needs to implant eggs into people for offsprings which is what happened to the blue haired girl when she got captured before she was also thoroughly raped by the red costumed chick. D. Apparently they never understood what it meant for someone to get impregnated by the bad guy which led to this chapter where whatever was in there split her in half.

That was a weird way of ending this series. If she had the power to send one of them back in time with her memories in-tact why didn't they do it earlier? PS. When you actually tune in for the plot.