Naruto: I'm the First Shinobi
The protagonist, Minamoto Hachiman, was a modern man reborn into the world of Naruto during the Kaguya era. He has no system, and out of sheer pettiness and pride, he would rather die (or so he says) than implant invasive alien genes and taint his proud human body with second-hand products, so considering he has no Otsutsuki bloodline, he decided to walk an untrodden path; seeing how far human ingenuity has gotten humanity in the modern era, Hachi refuses to believe that even with plot knowledge, humans can't reach or even surpass the level of the Otsutsuki by themselves. Unfortunately, the world is not so kind, so power can't come from nothing, even in this fantastical world. His challenges are many, and as all humans do, he also fails, but watch as Hachiman works hard to explore a clean and pure (no inhumane experiments and sacrifices *wink*) path to power and becomes the true God of Shinobi, dispatching those filthy aliens on a one-way trip to the Pure Land (just ignore his little life-long entanglement with Kaguya, as Hachiman's wife, she's clearly one of us, not a dirty alien). But on a more serious note, from feeling lost and confused after his arrival to this world to then finding hope in humans and discovering something worth seeking, this is the story of Minamoto Hachiman, the Guardian God of Shinobi.
DISCLAIMERS: 1. While the earlier half or so of the story and the power system are already planned, please offer your feedback and what you'd like to see as a reader, with this being a fanfic, it's not a big deal to change some things on the fly, especially this being my first fanfic, I'd really like to listen even to some more subjective opinions as long as it's nothing unreasonable, but keep in mind I will obviously not change the important parts of the story I want just for some readers. And also, if you're 100% certain something I wrote is different from what was clearly stated in a canon source, correct me, just please don't bombard me with fanon or your own headcanon you mistook as canon, Naruto is getting old, so we can all forget and misplace some concepts.
2. I obviously do not own any of the intellectual property of the world, characters and stories of the Naruto/Boruto franchises (I will stay away from Boruto stuff, just taking inspiration for some powers and the Otsutsuki, I haven't read or watched it either, so that's that).
3. Read this for more context if you don't mind VERY LIGHT SPOILERS: There's no harem, only Kaguya (there's a good enough reason for this romance in-story, it's not just a whim of the MC, it's also necessary for the story because I just couldn't bring myself to fully waste the entire Naruto plot as it'd be boring and this is a fanfic, so if I changed the whole thing it might as well not be Naruto at all), so the story is actually going to be somewhat similar to the original until the time of Madara & Hashirama when the MC "resurfaces".
3. I will try my very best to make everything accurate to what is clearly established in the original, but considering that Naruto is not recent, that I'm not a Naruto fanatic, and that the original work itself is quite messy and nonsensical, you might disagree with my interpretation of what's possible in the Naruto power system or I might get something wrong, if so, consider this an AU. Also, I'll try to keep as much of a Shinobi/Samurai/Sage vibe as possible, but especially when approaching higher levels of power, a lot of things get more cultivation-like, I definitely won't make it like a cultivation novel because that's boring, but I can't steer too far from the original either.
4. I'm doing this for fun, so I don't need your money, I don't know how this website works for making money either, but if you have an urge to support, just do whatever you can through this website I guess, the biggest help is giving me your feedback, just have some sense and don't spout nonsense, please. That's it for disclaimers I guess, hope you enjoy the read!