The fanfiction might revolve around Kurenai protecting Naruto. Since she's an experienced ninja, she could sense the threats against Naruto early on. For example, she might prevent some of the Akatsuki's attempts to capture him. And she could also introduce Naruto to her friends in the village, expanding his social circle among the ninjas.
Well, it could be about Kurenai taking on a sisterly role for Naruto. Maybe she helps him train, like teaching him some special genjutsu techniques that she's good at. She could also be there to support him emotionally, especially when he faces difficulties in the village or in his ninja missions.
Well, it could be about Kurenai having some secret connection to Naruto as his sister. Maybe she discovers this truth and has to deal with the implications. For example, she might have to protect Naruto from new threats while also coming to terms with her new - found family relation.
There are many potential plot ideas. For example, an ancient evil is awakened near the village, and Naruto and Kurenai are part of the team sent to deal with it. During their journey, they face numerous challenges. Naruto's positive attitude starts to influence Kurenai, who has always been a bit more solemn. Meanwhile, Kurenai's wisdom and experience help Naruto make better decisions. This shared adventure could lead to a romantic relationship between them in the fanfiction. Another idea could be that a new form of chakra is discovered, and Naruto and Kurenai are the only ones who can master it together. Their training and exploration of this new power bring them closer.
It would be more nurturing. Kurenai could cook for Naruto, like making him some of her special ninja - style meals. And she'd be there to listen to his problems, whether it's about his love life or his struggles with mastering new jutsu. Their relationship would be based on mutual trust and respect, just like a real sister - brother relationship.
She could be involved in the Akatsuki plot in some way. In the fanfiction, she might have been sent on a mission that led her to cross paths with the Akatsuki members. This could create a whole new storyline where Naruto has to rescue his sister from the clutches of the Akatsuki, adding more depth to the Naruto universe.
Well, perhaps in this fanfiction, Kurenai somehow gets involved in Naruto's life in a very maternal way due to some unforeseen circumstances. For example, she might be the only one who can understand a new power that Naruto has awakened. So, she decides to guide him like a mother would. She would teach him how to control this power, and also give him emotional support which he lacks so much. In the process, their bond grows stronger, and they face many challenges together, like fighting against new and powerful enemies who are after Naruto's power.
Perhaps there was a misunderstanding. Kurenai might have thought Naruto was involved in something bad. For example, she could have been misled to believe Naruto was working with a group of rogue ninjas. So she attacks him, and Naruto has to prove his innocence while also dealing with her attacks.
One possible plot could be that after the war, Naruto and Kurenai start to work closely together on rebuilding the village. As they spend more time together, they develop feelings for each other. Eventually, they get married and face challenges like dealing with the expectations of the village and Naruto's duties as a hero while also building their own family.
The plot might involve Kurenai seeing Naruto as a kindred spirit. Maybe she lost someone dear and sees in Naruto the same pain and determination. She adopts him and starts to teach him about the importance of family and bonds. Naruto could then grow up with a stronger sense of self - worth. He might also become more confident in his abilities earlier because he has Kurenai's guidance. This could change the way he approaches his training and his interactions with the likes of Sasuke and Sakura.
In this fanfiction scenario, Kurenai could also help Naruto with his emotional control. Naruto has a strong will but sometimes his emotions can get the better of him. Kurenai, with her calm and collected nature, could teach Naruto how to stay focused and in control during intense situations. For example, she could use her own experiences to show Naruto how to channel his emotions into strength rather than letting them cloud his judgment. This would not only improve his combat abilities but also his decision - making skills.
Well, it could be that Kurenai is somehow deceived into believing Naruto has done something really bad. Maybe she's tricked by an enemy who fakes evidence against Naruto. So, in her misunderstanding, she turns against him.