Another plotline could be that Neji is initially hesitant to be friends with Naruto because of Naruto's status as a Jinchuriki. But as they train together and Naruto shows his determination and kindness, Neji starts to change his mind and they become true friends.
Maybe they could go on a mission together where they have to rely on each other completely. In the face of danger, they gradually build a deep bond of friendship. For example, they might be trapped in an enemy's lair and have to use their combined skills, Naruto's Rasengan and Neji's Gentle Fist, to escape.
One interesting plotline could be Naruto helping Neji break free from the rigid ideas of his clan. Naruto's free - spirited nature could inspire Neji to see beyond the limitations set by the Hyuga clan's traditions.
One possible plotline could be that Neji is severely injured during a battle against a powerful enemy. Naruto arrives just in time, using his newfound Sage Mode powers to fend off the foe. He then uses his medical ninjutsu skills, which he has been secretly training, to heal Neji's life - threatening wounds. Another plotline might involve Neji being trapped in a genjutsu created by a rogue ninja. Naruto, with his strong will and ability to break genjutsu easily, dives into Neji's mind to free him from the illusion.
One possible plotline could be the main character's struggle to control the new demonic powers while still maintaining their sense of self. For example, they might have to deal with sudden outbursts of power that attract unwanted attention in the Naruto world. Another plotline could involve the character's relationships changing. Their friends might be scared or suspicious of them at first, but over time come to accept and even rely on their new powers.
Perhaps a story where Neji gets injured during a battle and Tenten takes it upon herself to nurse him back to health. During this time, they have long conversations about their dreams, fears, and past experiences. This shared time allows them to bond on a more emotional level, strengthening their relationship.
One possible plotline could be that Naruto has a sudden and extreme power-up that makes him overconfident. This overconfidence leads him to challenge Neji in a spar that gets out of hand and he ends up 'destroying' Neji in the sense of completely overpowering him. Maybe Naruto has unlocked a new form of his chakra that Neji can't counter with his Gentle Fist technique.
Perhaps there could be a plot where Naruto and Tenten discover a new form of training. They accidentally stumble upon a hidden area in the forest where the chakra flow is different. Together, they figure out how to use this new environment to enhance their skills. Naruto might learn some precision from Tenten while she could gain some of his tenacity when it comes to training.
One possible plotline could be that Harry discovers Snape's past and the reasons behind his harsh behavior. For example, Harry might find out about Snape's love for his mother. This new understanding could lead to an initial truce between them. They could start by working together on a difficult potion in the classroom, with Harry being more patient and Snape being less critical. As time passes, they might find themselves sharing their thoughts about the wizarding world's future and realizing they have more in common than they thought.
One possible plotline could be that Naruto discovers a new jutsu that not only enhances his power but also changes his appearance. This jutsu might have some unforeseen side effects that gradually make him more and more handsome. For example, it could be related to chakra control and as he masters it better, his physical features start to change in a more appealing way. Maybe his hair becomes shinier, his eyes more piercing, and his face more chiseled.
In a fanfiction, Naruto and Hinata as friends could go on a journey to find a rare flower that has the power to heal serious injuries. They encounter various obstacles like dangerous terrains and wild animals. Hinata might use her tracking skills with the Byakugan to find the right path, and Naruto would protect them from any immediate threats. As they travel, they talk about their dreams and fears, deepening their bond of friendship.
One interesting plotline could be Naruto and Sasuke going on a journey together outside of the Hidden Leaf Village to explore a new land filled with strange creatures and unique ninja techniques. They could face challenges that force them to rely on their friendship more than ever.
Another plotline could involve time - travel in the fanfiction. Naruto and his friends could be sent back in time to the era of the First Hokage. There, they would have to adapt to the different ways of the past while also trying to figure out how to get back to their own time, and in the process, they might change the course of ninja history.