I saw this theory and it was about how Armin's, both dub and sub, voice was narrating the story (in the anime). Therefore what if this story is being told by Armin by book he left behind. It showed a scene of Armin writing in a book but I forgot where it took place
I feel like this kid is going to get her limbs ripped off so many times, that at one point she's just going to be like "Wow. There goes my arm" and regenerate like nothing happened.
I feel like this story really needed an epilogue especially after the "I'll be waiting for you!" I don't know if it's just me or not but there seemed to be something between the mc and the senpai therefore an epilogue of what happened after her punishment would have been nice. I still enjoyed the story though.