*Honest review without spoilers*
First of all: this story is VERY heavy compared to the original, the characters are very emotionally charged and no one here escapes without PTSD. So if you want something light, this story is not for you.
Another warning is, this fic diverges considerably from the original, there is almost no highlight of the students of class 1-A, but in comparison, we have a lot of the Todoroki family and the backstory of the world of heroes, of course, since it is not shown in the anime, a lot of things are invented from the author's mind.
It is relatively slow in the beginning, (because like, the guy is a child) but it is not boring, don't be intimidated! In the future it gets so chaotic that you beg for a break...
That said;
This is probably one of the best fanfics I have read throughout my "career", it has great writing, character development and, relatively, a good description of fights, which is hard to do. I can't say much about the power system, since I'm not familiar with Naruto, but it seems to be good enough for someone like me to understand.
Another thing that caught my attention is the psychological description of the characters, it's an aspect that usually leaves something to be desired in fighting animes, but here we have an emphasis on the traumas experienced by the characters that influence the future of the plot, and for me, it's something that contributes a lot to the development of a character.
But what really caught me here was the difference from the original work, I've read many MHA fanfics and they're all very similar, most of them want to have their OC befriend the original characters, participate in the festival, be a hero, blah blah blah, the issue is that writers are usually afraid of diverging too much from the original work, and this limits them and what their work can become, Narcisse doesn't have this fear and that's what makes this story stand out.
(HIGHLIGHT for the absolute professional ethics of always posting regularly).
My sincerest compliments to Narcisse, you haven't even finished yet and I'm already wondering what you're going to write next... (・・;)