In fanfiction, Kakashi's possessiveness might be shown by his constant presence around Naruto. He could be always around to offer advice, whether it's about ninja techniques or personal problems. Also, he may be possessive in the sense that he doesn't want Naruto to get too close to other potentially dangerous or negative influences. He wants to be the main guiding force in Naruto's life.
One way it could manifest is in his training methods. He might be more strict and dedicated with Naruto compared to other students. He could also try to monopolize Naruto's time for training, not wanting other ninjas to interfere with Naruto's growth under his guidance.
She might be overly protective of Naruto in fanfiction. For example, she could prevent other characters from getting too close to him or interfere when she thinks Naruto is in a potentially harmful situation.
Well, in fanfic, Kushina's possessiveness can be seen in her reactions to Naruto's relationships. If Naruto shows interest in a girl, Kushina might be very possessive and try to interfere. She might think no one is good enough for her son. Also, she could be possessive about Naruto's time, always wanting him to spend more time with her instead of on missions or with his peers.
In the fanfiction, Kushina's possessiveness could be manifested in various ways. She might be very controlling of Naruto's daily activities. For instance, she would decide what he eats, when he sleeps, and how he spends his free time. Also, if there are any female characters showing interest in Naruto, Kushina would be quick to step in and make it clear that Naruto is 'hers' in a sense. This could create some interesting conflicts in the story, as Naruto might feel suffocated by her over - protectiveness at times, while also understanding that it comes from her love for him.
In this fanfiction, Gaara's possessiveness could be demonstrated in different ways. Firstly, he might be possessive in terms of her time. He wants to spend as much time as possible with her. Secondly, he could be possessive about her emotions. He doesn't want her to be too friendly with other guys as he fears she might develop feelings for them. Also, he may be possessive about her safety, always being on guard and ready to fight off any threats to her.
It can create tension. For instance, if other characters don't understand his possessiveness, they might clash with him. This can lead to interesting character dynamics and conflicts within the story.
In this type of fanfiction, the fem Kyuubi's possessiveness might be manifested in her protecting Naruto at all costs. She could be overly vigilant and not allow any harm to come near him. This could lead to her interfering in battles or situations where Naruto might be in danger, even if he doesn't necessarily need her help all the time. She may also try to monopolize his time, not wanting him to go on missions with other people or make new friends. Her possessiveness could also be expressed in a more emotional way, like getting sulky or angry when Naruto doesn't pay enough attention to her.
In fanfiction, Minato's possessiveness might show in his reactions to Naruto's achievements. He could take too much pride in Naruto's success as if it's only his to be proud of. For instance, when Naruto accomplishes something great, Minato might act as if he's the sole reason for Naruto's success and not give enough credit to Naruto's own hard work and the influence of his friends.
The fear might be manifested in the Kyuubi's attempts to negotiate with Naruto rather than fight. In fanfiction, the Kyuubi could offer Naruto things or make promises in order to avoid a situation where Naruto uses his power against it. This shows that the Kyuubi is aware of Naruto's strength and is scared of the consequences of going against him.
Well, in certain fanfictions, Naruto might use his genjutsu in a more strategic way. He could be good at genjutsu that makes the opponent see multiple copies of him, not just the regular shadow clone jutsu but more like an illusionary army. This gives him an edge in combat as the enemy can't tell which is real and which is fake. Also, he might use genjutsu to infiltrate enemy strongholds by making the guards see things that aren't there, like an empty corridor instead of him sneaking in.
Some fanfictions might depict Naruto's lightning power as being connected to his emotions. When he gets angry or determined, the lightning power becomes more intense. He could use it to charge up his other jutsu, like his Rasengan. By infusing the Rasengan with lightning, it becomes a more powerful and deadly attack, with the added electrical damage that can disrupt an opponent's chakra flow.