Maybe in the fanfiction, Kurenai adopts Naruto and helps him deal with his inner demons. She could use her understanding of the human psyche to guide Naruto through his traumas, like the loneliness he has felt since he was a child.
One interesting plot could be Naruto finding himself in a situation where he has to protect Kurenai from various threats while also dealing with the complex relationships in the harem. For example, he might have to fend off rogue ninjas who are after Kurenai's unique jutsu skills, all while trying to balance his feelings for the other characters in the harem.
Well, a common plot is that Yugito, through adopting Naruto, helps him control the Nine - Tails' chakra better. She might use her own experience as a Jinchuriki to guide Naruto. For example, she could take him to a secluded place for special training. Also, there could be a plot where Yugito and Naruto face off against common enemies together. This would not only strengthen their relationship but also show how they complement each other in combat.
Maybe in the fanfiction, Konan adopts Naruto after he is ostracized by the village for some reason. Konan then helps him grow stronger in isolation, and Naruto develops a new understanding of the ninja world outside of Konoha. This could lead to him having a different perspective on his goals and relationships.
In some 'naruto adopts girl fanfiction', the girl might be an orphan from a war - torn area. Naruto, having known the pain of being alone as a child, takes her in. He helps her overcome her trauma by sharing his own experiences. For example, he could take her to Ichiraku Ramen and introduce her to his favorite food, creating a bond over simple pleasures. As she grows, she starts to show great potential in ninjutsu, which Naruto nurtures.
Another plot might involve a school competition. Naruto and Kurenai could be on different teams. Naruto's team is the underdog, but with Kurenai's strategic advice (even if she's on the opposing side), Naruto manages to turn things around. This would show their respect for each other's skills and how they grow through the competition.
Another possible plot is that Kakashi's adoption of Naruto draws the attention of some hidden enemies. These enemies might see Naruto as a threat because of his potential and Kakashi's influence. So they try to target Naruto, which leads to a series of intense battles and adventures where Kakashi has to protect Naruto and help him grow stronger to face these threats.
A possible plot is that Naruto accidentally discovers the existence of this harem and is initially confused. As he gets to know each person in the harem, he realizes the different qualities they bring. Some might be strong in combat, others in intelligence. And they all start to form a sort of family unit. Kurenai could be like the guiding figure in this group, teaching them how to work together and use their individual strengths for the greater good. This could lead to various adventures where they face challenges and grow closer as a group.
Well, aside from Naruto and Kurenai, there could be other characters involved too. For example, Naruto's friends like Sasuke and Sakura might play important roles. They could be curious about Naruto's new living situation with Kurenai, and their interactions could add more depth to the story. Also, Kurenai's colleagues in the ninja world might show up, perhaps to offer advice or assistance regarding Naruto's upbringing.
In this fanfiction, perhaps Naruto would finally have a real family. Kakashi and Kurenai could teach him many things. Kakashi might train Naruto more intensively in ninjutsu, while Kurenai could help Naruto understand emotions better, especially when it comes to relationships and dealing with his inner demons.
Well, it could be really interesting. Naruto, who has always been alone, would have two caring parents. Kurenai, with her gentle nature, would be a great mother figure. She could help Naruto with his emotional growth. And Asuma, being a strong and experienced ninja, would train Naruto rigorously. This would probably make Naruto a more well - rounded ninja, with a better understanding of both the physical and emotional aspects of being a ninja.