[Klashikari]

Except that has nothing to do with sexual abuse.

Spoiler for Sharin no Kuni, End of Natsumi's route:

Her androphoby stems from the fact she was literally a sandbag with the investigators using violence on her after the civil war, especially pulling her hair and messing with the ribbon Ken'ichi complimented/gave (can't remember whichever it was). That and the fact she was subject to insults and "prositute allegation" because of that brat who wanted to seduce her (which was rejected obviously, since Natsumi was waiting for Ken'ichi), so he spread rumors about her, which made the issue even worse than it was.

The fact she couldn't help Ken'ichi was still because she was under the effect of her trauma, being labeled as a person who "doesn't deserve to love and to be loved", hence why she literally shut herself with any interaction with male individuals.

And the old manager left because of the third parties, due to obviously being too close of her.

The most she was subjected to was "abuse/torture" and sexual harassment, but nothing past that.

So no, you really misunderstood points in that regard.