Sakura is typically shown as intelligent and determined in these fanfics. Her development from a somewhat insecure girl to a confident ninja is often explored. Kushina is characterized by her boldness and tenacity. When they are in a fanfic together, their relationship can vary. It could be a friendship where they bond over their love for the village or their shared experiences with difficult situations. Maybe Sakura admires Kushina for her strength and Kushina sees potential in Sakura, leading to a relationship of mutual respect and support.
Another aspect could be that the fanfiction delves into how Kushina's presence affects Naruto's relationships with others. For instance, his relationship with Sasuke could be different. With a strong maternal figure in his life, Naruto might be more stable emotionally and be able to approach Sasuke in a more understanding way, which could potentially change the whole dynamic of their rivalry and friendship.
One possible reason could be a misunderstanding. Maybe Minato thought Kushina had done something to endanger Naruto when in fact she hadn't. In the heat of the moment, he lost his temper and slapped her.
One consequence could be Naruto's emotional turmoil. He would be completely shattered as his mother, who he probably idolizes, has turned against him. This could lead to him doubting himself and his place in the world.
One consequence could be Naruto's emotional breakdown. Since Kushina is his mother, her betrayal would be a huge blow to him psychologically. He might start to doubt himself and his place in the world.
Yes, there are many. Some fanfictions focus on the warm family moments, like Naruto's father Minato being excited and taking care of Kushina during her pregnancy. They might show how the village is also preparing for the arrival of the new baby, with friends and neighbors being supportive.
In a fanfiction, if Minato were to slap Kushina, it would be a huge shock to the Naruto - Kushina relationship. It could potentially cause a rift between Naruto and his father Minato in Naruto's mind. Also, Kushina would likely be deeply hurt and angry, which might lead to her distancing herself from Minato. This event could also change the way Naruto views his family's past and his parents' relationship.
Often, Obito is attracted to Kushina's strength and kindness. He might try to impress her with his own abilities. Their interactions could involve Obito being a bit clumsy in his attempts at first. Kushina, on the other hand, might find his eagerness endearing and start to open up to him more. They could share stories about their pasts, their dreams, which deepens their bond.
Minato is often paired with Kushina in these fanfictions. Their relationship was a significant part of the Naruto story, so many fanfictions expand on their love story. Another popular pairing is Kushina and Naruto. It could be a story where Kushina is brought back to life and gets to be a part of Naruto's life in a more direct way.
Minato could be a common character. Since he was Kushina's husband in the original story, his presence might add some interesting dynamics to the harem scenario. Another could be Jiraiya. His connection to Naruto and his reputation as a bit of a ladies' man could make for an interesting addition to the story.