what if Naruto had Kāma.
the story will start 2 weeks during the 1 month training period for the 2nd preliminaries. Naruto will be walking through a forest when suddenly he finds a heavily weakened Isshiki. we find out that in this story, via flashback, that he along with Hagoromo and Hamura, teamed up to fight against Kaguya. the fight eventually ends with Hagoromo and Hamura to do the things that they did in canon, while Isshiki continues fighting Kaguya for centuries, eventually Isshiki does win, but as Kaguya is being sealed away, she laughs at her cousin, telling him that she will be return thanks to her unstoppable will (referencing Zetsu). as the sealing is done, Isshiki leaves and the flashback is over. cut back to the real world where Isshiki eventually notices Naruto, who is currently worrying about the Ōtsutsuki's health. Isshiki fearing that Kaguya will come back, decides to take precautionary measures, so he talks to Naruto. Naruto, voluntarily, agrees to take the 'gift' the Ōtsutsuki's offers, because Naruto is that kind hearted, and Isshiki gives him Kāma, it's on his hand incase you are wondering. Isshiki then warns Naruto about Kaguya and passes away due to his injuries.
and we follow Naruto from there.
an unique idea for this story will be that Naruto never meets Jiraiya. now that may seem unimportant, but I have ideas on how it'll affect the story of Naruto.
oh and it goes without saying, but during the fight with Neji. at first Neji will be winning, but eventually Naruto's Kāma will activate and Naruto will then completely body Neji.