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.
One possible plot for a 'kurenai sister of naruto fanfiction' could be that Kurenai and Naruto are reunited as siblings. Kurenai then uses her position and skills to help Naruto gain more acceptance within the village. She could also help him better understand his own powers. Along the way, they face challenges together, like dealing with the Akatsuki who might see Naruto's new family connection as a way to get to him. Their bond as siblings grows stronger as they overcome these difficulties.
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.
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.
In such a fanfiction, maybe Kurenai could help Naruto with his stealth skills. Since she's an expert in genjutsu, she might teach Naruto how to use genjutsu more effectively in battles, like against the Akatsuki members.
Perhaps Naruto owns Kurenai in the sense of protecting her. In the fanfiction, there could be a new and powerful enemy threatening the village. Naruto, with his great power, takes it upon himself to keep Kurenai safe. He stands in front of her in battles, and his actions and decisions end up dictating how Kurenai can move and act, thus 'owning' the relationship in terms of protection.
The Akatsuki could be the main antagonists. Since Naruto is an important target for them, and if Kurenai is now his sister, they might see her as an obstacle in their way. They could try to use their various powers and strategies to either capture Naruto or cause harm to both him and Kurenai.
One possible plot could be that Naruto has to go on a special mission with Kurenai. They might be sent to a hidden village where they discover a new type of jutsu that is being misused. Kurenai's genjutsu skills and Naruto's rasengan could be combined in unique ways to fight against the villains using this jutsu.