A fanfiction could explore their shared experiences growing up. Maybe they both had a difficult time in the ninja academy for different reasons. Naruto because of the Nine - Tails and Kurenai perhaps because of her own family or social pressures. They could bond over these shared hardships.
In the fanfiction, their relationships with other characters would shift. For example, Naruto's relationship with Kakashi would be different. Since Kurenai and Kakashi are colleagues, Naruto being the same age as Kurenai could put him in a different position in Kakashi's eyes. Maybe Kakashi would be more strict with Naruto or expect more from him because he's closer in age to Kurenai, who is also a respected ninja.
Naruto's relationship with Iruka might change. Since Kurenai is now the same age as Naruto, Iruka might see Naruto in a different light as he's interacting more with Kurenai. Also, Kurenai's relationship with Asuma could be different. Maybe there would be less of a mentor - student vibe and more of a friendly competition among the four of them.
In the fanfiction, Naruto's vampire nature could bring out a protective side in him towards Kurenai. He might use his abilities to keep her safe from various threats. Kurenai, initially hesitant, begins to rely on Naruto more. As time passes, they share many experiences, both good and bad, which strengthen their relationship. For example, they might go on a mission together where Naruto's vampire powers prove crucial, and this makes Kurenai see him in a new light.
The relationship might develop in a more complex way. Kurenai could be possessive because of her own past experiences. Maybe she lost someone important, and she sees Naruto as someone she doesn't want to lose. So she starts to insert herself into Naruto's life. Naruto, being the kind - hearted person he is, would accept her presence. As time passes, they would face challenges together, like battles against enemies. These shared experiences would strengthen their bond and make Kurenai's possessiveness more of a defining aspect of their relationship.
If Naruto and Kushina were the same age, Naruto might develop more of an empathetic side earlier. Since Kushina was known for her strong will and compassion, being around her could make Naruto more in tune with his emotions. He might not be as reckless as he was in the original story because he'd have Kushina to balance him out.
At first, Naruto might be a bit confused about this new arrangement. But Kakashi would use his easy - going nature to break the ice. He'd take Naruto for walks and talk about ninjutsu casually. Kurenai would be the one to make sure Naruto is well - fed and taken care of. As Naruto grows, he'd start to participate in their conversations more. He'd ask Kakashi for advice on tough missions and Kurenai for advice on how to deal with his friends. Their relationship would be a mix of mentorship, friendship and family, evolving as Naruto becomes more mature and skilled as a ninja.
Their relationship might start off rocky due to the sudden nature of the arranged marriage. Naruto might be a bit clumsy in trying to understand Kurenai at first. But as time passes, he'll see her wisdom and strength. Kurenai, on the other hand, will come to appreciate Naruto's determination. They'll start to share their stories, like Naruto telling Kurenai about his adventures with Sasuke, and Kurenai sharing her experiences as a ninja. This sharing will bring them closer.
Naruto's character would likely become more emotionally stable. With Kurenai as a mother figure, he'd have someone to confide in. He might be less impulsive as he grows up, since Kurenai would teach him to think before acting. His ninja skills could also be different. He might be more proficient in genjutsu due to Kurenai's influence. Overall, he'd have a more positive self - image, knowing he has a family who loves and supports him.
Naruto would likely become more patient. Kurenai's training methods might force him to slow down and think more carefully, which is different from his usual impulsive self. This could lead to him making better decisions in battles.
Naruto's character would likely be more reserved. Kurenai's influence would make him think before acting. He'd still be determined but with a more strategic mindset. His sense of humor might also be a bit more refined, influenced by Kurenai's calm nature.
His leadership skills could improve significantly. In this fanfiction scenario, if Naruto is in a position to 'own' his interactions with Kurenai, he would be leading in various aspects. This could mean better communication skills, being able to listen to Kurenai's thoughts and then making well - thought - out plans. He would grow into a more well - rounded leader, not just on the battlefield but also in relationships within the ninja community.