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.
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.
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 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.
Anko's possessiveness in Naruto fanfiction may be shown in the way she gets jealous easily. If Naruto gives more attention to another character, Anko might sulk or become angry. She could also be possessive in terms of protecting Naruto from perceived threats. Even if the threat is minor, she'll be very vocal and physical in her defense of Naruto, which shows her possessive nature.
It could be due to a misunderstanding. Kakashi might think that Naruto is getting involved with something dangerous or has some potential that he can't handle. So, in his warped way of thinking, he abandons Naruto to protect him from himself or from some unknown danger.
Well, there could be. Fanfiction writers love to explore unique and unexpected relationships. Since Naruto and Kakashi are both popular characters in the Naruto universe, some writers might come up with such a plot for the sake of creativity and exploring different storylines. But it's not a part of the official Naruto story.
One great fanfiction could be about Kakashi using his Sharingan to train Naruto in a special jutsu. Maybe he shows Naruto how to better perceive an opponent's moves by using the Sharingan's ability to analyze. This could lead to Naruto developing a new and powerful technique that combines his own chakra control with the insights from the Sharingan.