Kushina would take care of baby Naruto very tenderly. She would make sure he is well - fed before sleep, perhaps by breastfeeding him or giving him a warm bottle. She'd also check his diaper and change it if needed.
The village would likely be overjoyed. Naruto is a hero in the Hidden Leaf Village, and Kushina was also respected. Their baby would be seen as a new hope for the village. People would probably shower the baby with gifts and love.
Perhaps the story is centered around the family dynamic. Naruto and Kushina could be shown enjoying simple family moments, like having dinner together or taking walks. At the same time, they are part of the Hidden Leaf Village, so there could be a plot where they balance their family life with their duties to the village.
Well, a fanfiction could explore how Minato and Kushina's love for each other is reflected in their care for Naruto. Their strong bond as a couple helps them create a loving and stable environment for their baby.
In fanfiction, Kushina might also interact with baby Naruto in a protective way when facing potential danger. Imagine a situation where some rogue ninjas are after Naruto for some reason. Kushina would put herself in front of Naruto without hesitation, using her chakra chains to fend off the attackers. And after the danger has passed, she would comfort Naruto, telling him that he is safe now and that she will always protect him.
One possible development for Naruto is that he begins to show signs of leadership. Even as a baby, he might gather the other village kids around him and lead them in some small play - adventures. For Kushina, she could develop a more nurturing side. She might start to think more about the well - being of the whole village because she realizes that Naruto will grow up in this environment. So, she could be involved in activities that improve the living conditions in the village, all because of her love for Naruto.
One great fanfiction idea could be about Minato and Kushina's daily life with baby Naruto. Maybe it shows how they take care of him, the little things like Kushina singing lullabies to Naruto while Minato watches with a loving smile. It could also include how they start to notice Naruto's unique chakra even as a baby.
One interesting scenario could be Kushina protecting baby Naruto from some hidden threats in the village. She might use her unique Uzumaki abilities to keep him safe.
One possible reason could be mind control. Maybe an enemy of the village found a way to manipulate Kushina's mind and make her turn against her own baby. Another reason might be a misunderstanding. For example, she could have been tricked into believing that Naruto was a threat to the village in some way.