Uno de los mejores fanfic de naruto en el tiempo que he leído; si aceptas te facilitare algunas ideas:
•Esa última criatura que mencionas podría ser un experimento fallido de orochimaru para crear un cuerpo joven eterno y escapo de su encierro.
•La razón por lo que la criatura asesina a las personas seria para comer su carne acumulándola en su cuerpo y obtener habilidades como los alien carnívoros de PARASYTE - KISEIJUU SEI NO KAKURITSU.
•Para que sean más creíbles los sentimientos de haku hacia naruto además del momento ya conocido en que se encuentran, mientras zabuza se recupera junto con ayuda de Ino y hinata deberían convencerla de pasar tiempo con ellos y la hagan ver como sufre la gente en nami la voluntad verdadera de ayudar a otros y así enseñarle a no actuar tanto como una herramienta y más como ser humano (es más creíble que solo salvarla y de golpe se enamora y acepte esto)
•En el harem no me convence mucho kurenai y anko, sería demasiado abrumador para Ino seguirles el paso a dos Kunoichis Jounin y dos ninjas del futuro, además se sentiría fuera de lugar.
•Si deciden cambiar a anko y kurenai (antes señalabas que no estarán en el harem) podrías involucrar a Karin, piénsalo es una uzumaki pura ayudaría de gran manera a naruto y sus parejas además el que karin sea pervertida y sumisa alegrara a esta hinata además subirá el humor y el interés ya que Karin con naruto son parejas poco escritas y mucho menos que valga la pena leer.
•Otras chicas que podrias poner en cuenta (no es obligación es tu historia) serian:
-Tenten (por tener grandes metas, energía y otras cualidades que se llevarían bien con naruto , es poco valorada solo por no ser de un clan o tener un kinjutsu, además su apariencia por ser china la hacen una chica muy hermosa)
-Temari (por ser astuta y por su pasado se ve que sufrio mucho comprende el dolor de un jinchuriki es una gran luchadora, ayudaría involucrarla en el harem asi en verdad de alguna forma no solo naruto también Gaara gana de alguna forma una gran familia) además yo la veo incompatible con un flojo y desmotivado shikamaru; que este ultimo se quede con shiho.
-Otras posibles opciones creíbles serian Shion (sacerdotiza), Shizuka (la princesa Kunoichi del relleno) y Fuu (jinchuriki Nanabi)
•Podría morir sakura por culpa de sasuke , o Ino el saber más adelante del futuro con ayuda de hinata y naruto salvarla es opcional (preferencia después de los exámenes chunin)

I would like to point out that a Shadow Clone copies everything the original had, so technically Naruto could have used an SC forbidden scroll rather than henge(which is supposed to be a self-transformation technique) a stick into one. Although I do agree that it was probably the better idea so as to avoid any slip-ups on Naruto's part.

por favor continua esta historia esta buenisima

Hoping you're going to see this one day.

This story is really cool, I really like the way your chracters behave and interact. As well as the worldbuilding regarding the abilities (The Hinata/Hanabi scene regarding water manipulation is grandiose).

The only criticism I could do is that I don't really understand where you were going with this story. The plot was somewhat lacking in the sense that reading your story is more like wandering in your sandbox than following a focused thread.

Thank you for the amazing works,

Cheers :D

Hahahahahahahahahahahahah I knew it! Thanks for pointing that out!

Continued from my chapter 11 review.
The Kyuubi somehow even manages to bring/reverse summon into the seal to teach and train the Five Colors. Thus they become summons for Naruto and Hinata.

The five former? demon girls could due to sensing the demonic chakra in Naruto and Hinata as well as the Kyuubi's sealed in them or she ends up summoning herself when they meet the Five Colors and senses their lower demonic power and decides to take them under her wing to be usefully to her masters.

These fanfics you've been suggesting are they all on or are they on other sites too?

I love the crack at Dumbledore.

So… we've reached the end. I've been reading this story over the weekend, and been having a wonderful time. It's smart, and a little smutty — I love fix fics. You clearly put a lot of effort into worldbuilding, and it shows here — verisimilitude and unintended consequences.

Honestly, the only thing (so far) that seems left out is more all-female shenanigans with Naruto rocking transformation techniques, but… alpha male, I guess? It seems like a shame that Sakura (one of the most ridiculously grown characters post-timeskip) is getting thrown under the bus, but maybe it could be a redemption for Kakashi. Likewise, this mission here is where demon foxes could earn their keep, being able to be summoned and have a reasonable discussion with corporeal succubi.

Well, whatever happens in the future, or intended, that you for sharing this, and ducking FF's citrus ban.

What about kurenais son you just abandon him to never exist

wait if future Naruto is half demon and past Naruto is human and they merge wouldn't that make Naruto both?(the demon version of Jesus?(100% god 100% human?)

I loved the story so far. I wis you would keep it going

Why do you never finish your stories

I recently discovered your stories on Naruto and would love to read more sadly non are finished. That is the only negative thing I have to say. Aside from constantly switching between names for people within the same scene some consistency would be nice but i'll take it any way u serve it up. Two thumbs up and keep going.