The child might have Naruto's ability to use the Rasengan. Since Naruto mastered this powerful jutsu, it could be passed down. And with Kurenai's genjutsu skills, the child could also be a master of illusions. Maybe they could even combine the two, creating a new and unique jutsu that uses the power of the Rasengan within a genjutsu.
The child could have Naruto's chakra control. This would allow them to perform powerful jutsus like the Rasengan. And with Mirajane's influence, they might also be able to use some form of transformation magic. For instance, they could transform into a powerful beast - like form similar to Mirajane's Satan Soul form but with a ninja - like twist.
Well, their child might inherit Naruto's chakra control and Shion's unique spiritual powers. Maybe the child could have an enhanced form of the Rasengan, combined with Shion's ability to predict the future in a battle sense. For example, being able to foresee an opponent's moves just a split second before they make them and using that knowledge to adjust the Rasengan's trajectory for a more powerful and accurate attack.
The story could involve the child being a target because of Naruto's status as a hero and Kurenai's respected position in the village. Enemies might try to kidnap the child to get leverage over the village. Naruto and Kurenai would then have to go on a dangerous mission to rescue their child. This would show their love and dedication as parents and also the child's own growth as they face the reality of the dangerous ninja world.
Well, if Naruto and Kurenai had a child in fanfiction, it would be an interesting mix of their personalities. Naruto is all about never giving up and being super energetic, while Kurenai is calm and collected. The child might struggle with finding a balance between these two very different traits at first. And in terms of appearance, who knows? It could have Naruto's blond hair and Kurenai's red eyes perhaps.
It could inherit Naruto's ability to sense chakra, and combine it with Wonder Woman's enhanced senses. Also, the child may have Naruto's transformation jutsu along with Wonder Woman's super strength. Imagine it transforming into different forms while having the strength to take on powerful foes.
In this fanfic, the plot might also revolve around the relationships the child forms. They could have a special bond with Naruto's old friends like Sasuke and Sakura. The child might also struggle with the expectations placed on them by the village, as everyone would expect great things from the child of Naruto and Kurenai. This could lead to an internal conflict within the child as they try to find their own identity.
The plot could involve Kurenai protecting Naruto more fiercely from the start. Since she is a jonin, she might be able to shield Naruto from some of the early discrimination he faced in the village. Also, Naruto could be more involved in the affairs of the genjutsu - related missions and training, and his relationship with characters like Kakashi and Iruka could be different as Kurenai would play a different role in his life compared to Kushina in the original story.
Well, considering Naruto's connection to the Nine - Tails, the child could have some unique powers related to that. Maybe the child could have a partial tailed - beast form that is more controllable from the start compared to Naruto's initial struggles. In addition to that, from Tsunade, the child could inherit her knowledge of medical ninjutsu and be able to develop new techniques that combine healing and offensive capabilities. The child might also inherit Naruto's ability to sense negative emotions and use that in combination with Tsunade's strategic mind to outwit opponents in battle.
It can damage the positive image of the Naruto franchise. Fans may be turned off by such a negative and unethical concept being associated with the characters they love.
The plot could start with a mission gone wrong. Kurenai makes a mistake that endangers the village, and the only way to make amends is to become Naruto's slave as per the village's elders' decision. Naruto, though, doesn't treat her like a slave. Instead, he tries to make her an equal. This causes some conflict within the village as some people believe she should be treated harshly. But Naruto stands his ground, and together they face challenges and grow as characters.