Idea #4
-The Shrine of Swords; Daiyoukai's resurrection-
Naruto/Inuyasha(sort of)
This story begins after the Bikochu Arc or Shippuden's beginning after the Gaara Rescue Arc or after the 4th Shinobi War Arc.
Tsunade(or Kakashi) will send the remainders of Team 7 and Team 8 to escort an old "monk" to a shrine deep in the forests of Fire Country. This shrine will house several demonic swords. In the center of the shrine, there will be three swords wrapped in cloth and sutras and wards to seal away the power of one of these swords. The one wrapped up and sealed will be Tokijin. Tokijin will be the one in the middle. On the left of Tokijin will be Tesseiga, a ragged and old-looking sword, in its sealed state. On the right of Tokijin will be Tenseiga.
Naruto will befriend Kurama much earlier in this story.
Some of the team members will feel a "pull" to some of the swords.
The swords would choose the person worthy of wielding them. (If it's after the War arc, then Sasuke will be chosen by Tokijin)
Tenseiga will choose Hinata.
Kiba will be chosen by Tesseiga.
As soon as Hinata picks up Tenseiga she is forced into her mindscape.
As soon as Kiba picks up Tesseiga Nothing happens.
When Hinata wakes up from her mindscape, she explains that Toga, Inutaicho, spoke to her in her mind. He explained to her that she would eventually turn into a Youkai or a Daiyoukai. What kind, he does not know but, she'll be really powerful.
Once that is done, the "Monk" will reveal himself to be Totosai, a few thousand-year-old youkai blacksmith, and explains the origins of the two blades or, as he refers to them, Fangs of Toga, the dog Daiyoukai that Hinata spoke to in her mindscape.
Later that night, when everyone else is asleep, Naruto will still be up and about, unable to sleep.
Naruto will wander around the shrine for a while, conversing with Kurama. Naruto will feel a sudden "pull" to a hidden chamber underneath the shrine. Once he finds this hidden chamber with sage mode, Naruto will enter and find So'unga and Bakuseiga. So'unga will be sealed up tight but still leaking demonic energy, malice, and killing intent. Even if only slightly.
Bakuseiga will be sealed, but not nearly as tightly and solely because of its destructive capabilities. Bakuseiga would be leaking yellowish-green demonic energy in waves.
As soon as Naruto touched the Bakuseiga, his bijuu chakra shroud(or six paths shroud) would flare on to counter and subdue the Bakuseiga's acidic nature. Once Bakuseiga's poisonous energy was subdued, Naruto would return to the shrine to find the others all scattered about in a panic. Naruto would explain what he found and everyone would calm down and return to sleep with Hinata worrying about Naruto and what effects Bakuseiga's energy had on Naruto after Totosai explained its poisonous nature. Eventually, everyone relaxes enough to get back to sleep with thoughts of investigating the previously hidden chamber of the shrine. When Naruto goes to sleep, he is dragged into his mindscape once more. This time there is someone new waiting to talk to him. Sesshomaru appears in Naruto's mindscape to talk and explain a few things to him. Sesshomaru explained to Naruto what he called the old world. The era before chakra, before the Sage of Six Paths, before Kaguya, before Biju. He explains how the shinju descended from space. And the Otsutsuki clan's goal.
After Sesshomaru is done, Naruto and Kurama are left with a choice; stay human or turn into a daiyoukai. Naruto and Kurama decide to take some time to think it over.
The next morning after breakfast, Naruto explains what Sesshomaru had told him and what he and Kurama had decided on. Hinata then mentions that Toga had told her the same thing. After a few minutes of quiet, Kiba speaks up about his meeting Inuyasha and that he'll have to become a hanyou to use Tesseiga. After a few more minutes of thoughtful discussion, Totosai suggests that they go for it and become a daiyoukai or a hanyou.
He explains that they're going to need every possible advantage against the Otsutsuki and proceeds to tell them all of the benefits and drawbacks of becoming a daiyoukai or a hanyou. He gives them until week's end to decide but, warns them that they need to decide soon or they may not be able to perform the ritual to go through with it as it requires a harvest moon for a successful transition. A week goes by and we find Naruto in a clearing lying in the grass, trying to clear his head. Hinata, just behind a tree not too far away, approaches him to help him clear his doubts. She had already decided to become a daiyoukai and wanted him to become one as well, if for no other reason than so, she wouldn't have to watch him eventually die.
After a bit of talking Naruto decided to become a daiyoukai.
Later, Naruto and Hinata return to the shrine to find the others all gathered outside in what would be the "front yard" of the shrine with Totosai drawing the seals for the ritual in the ground.
Naruto and Hinata went to stand in the middle of the seals, back-to-back, once Totosai was done. There was a smaller one that Kiba was standing in attached to the main one that they were standing in. The smaller one would take the residual leftover energy to turn Kiba into a Hanyou. Totosai theorized that Kiba would become a dog-demon hanyou like Inuyasha due to his bond with Akamaru and Naruto would become a nine-tailed kitsune due to his bond to Kurama or he might be something else entirely. He also stated that he had no idea what kind of daiyoukai Hinata would become.
After the ritual was over, Kiba's hair had turned white, his nails and teeth were permanently lengthened like he was using his man-beast transformation and his eyes turned golden-yellow like Inuyasha's. He also had a pair of dog ears on the top of his head.
Naruto's hair was longer and resembled that of Minato's. He had pointed ears and his eyes looked the way they did in his biju shroud but blue. He had clawed fingers and toes. Finally, he had nine(Ten if it is after the war arc) tails flailing behind him. He had become a Kitsune Daiyoukai(? if it is after the war arc).
Hinata's hair was longer as well and her ears just as pointed as Naruto's. She now had clawed fingers similar to Naruto's but slimmer and sleeker. She had tails swaying behind her as well. She had become a nine-tailed Kitsune Daiyoukai to the surprise of the others in the group.
According to Totosai, Kiba is now as strong as Inuyasha was when he was 200 years old(the beginning of the Anime/Manga) and Hinata is about as strong as Sesshomaru when Tokijin was first created. Naruto is about as strong as Toga was when he died.
One side effect they hadn't predicted was how Kiba's transformation would affect Akamaru. Now, Akamaru is a Full-blooded Dog demon like Sesshomaru and Toga Inutaicho. Akamaru is in his full form which is a massive white dog with purple facial markings similar to Togas' and his eyes have red sclera and blue iris with slit pupils. Akamaru suddenly transforms into his more human-esk form. Akamaru looks like Kiba but with purple markings on his face like Toga and his hair is like Kiba's but it lays flat on his head. His eyes are the same as Kiba's.
Naruto will then go in and grab So'unga. So'unga would be subdued by Naruto's potent demonic energy, which, at this point, is at the same level as Toga Inutaicho.
By the end of this story, Kiba will be as strong as a full-power Sesshomaru(about the level of the four tails, Son Goku ) and Hinata will be slightly stronger than Toga Inutaicho(About on the level of the seven tails, Chomei). Naruto will be stronger than Kurama by a large margin(about three times stronger than the Juubi when Hagaromo first sealed it in the center of the moon)
I do plan on doing a sequel and building up their strength even further.
Sequel: Juubi x 10 = Naruto
—- Kurama x 10 = Hinata
—- Kokuo = Kiba
—- Kurama x 5 = Sasuke(if it's after the war arc)
