An interesting read.
Certainly not what I expected when I first clicked, but the opening panel made it extremely obvious what kind of way this story wanted to go. Nazism and the horrors of the holocaust are always tricky things to approach from a fictional (or, really, any other) angle, but I think the author did a decent job with it; it was certainly a story I could appreciate against that backdrop. I liked the characters of Kar98k and Negev, both seemed to have their own struggles, objectives, and feelings, and neither felt flat to me (which I expected them to). I liked the interaction of Negev and Kar98k at the end of the first part; I'd say it's Stockholm Syndrome, but with the ending chapter and epilogue, it felt more like some kind of calculated, perverse, and co-dependent revenge... which was so on-point for the rest of the atmosphere of the piece, it felt perfect. The minimal dialogue (especially in the first chapter) was also well executed.
Even if the subject matter (rape, power abuse, regular ol' abuse, etc) and the backdrop (Nazis, holocaust, concentration camps) is unpleasant, the story is still worth it in my opinion. I think it tells a story with those elements, it doesn't present those elements with a story (or, "story") around them.