"Quiet Confidence" https://www.gurochan.cx/lit/res/16524.html

It's weird, I don't really like vivisection (too visceral for me, lol) and I don't really like Quiet (not for the usual reasons, I just find that in a series filled with some of the best and most interesting bosses in all of videogames, Quiet is a really boring character with no personality and a lame fight), yet this story really captivated me. The language used, the pacing, the casual way the main character allows herself to be destroyed, it was all great and made someone who otherwise would have had no interest in the story really enjoy it.