https://www.dlsite.com/maniax/work/=/product_id/RJ380653.html

https://www.pixiv.net/en/users/24962445

Seems like this could be okay if the translation wasn't so fucking awful. I didn't believe that that was straight up from DLSite, but apparently, it is. Behold! A quote from a review there:
"However the translated version is absolutely dogshit. It is obviously machine translated and simply unreadable."

Base +6, Ilia_ +19

So only the first fight, and after shes fully brainwashed has anyone actually witnessed her fight? because the fact she always de-transforms after defeat, there is no way the people wouldn't learn who she is even if the transformation has generic perception blocker powers. Also a bit disappointing we never see how the brainwashing progress has on her school life, since we learned she does get groped regularly; does she start moaning like mad when this happens to everyones astonishment, etc? We do have proof she still attends school, as she was returning home around 90% brainwashed.

Base +17