Well, a possible plot in this Naruto time travel Kushina harem fanfiction could be that Naruto goes back to a time when Kushina was young. He starts training with her and other ninjas of that era. His unique skills and knowledge from the future make him stand out. As he spends more time with Kushina and her friends, they start to develop feelings for him. Maybe he introduces new jutsu or ways of thinking that impress them so much that they all end up in this sort of harem - like relationship with Naruto.
One idea could be that Naruto travels back in time and tries to save Kushina from her tragic fate. In the process, he accidentally creates a harem situation where various characters are attracted to him due to his future knowledge and his determination to change things. Another plot could involve Naruto using his time - traveling abilities to prevent certain events that led to the chaos in the ninja world, and as he does so, he forms deep bonds with different characters, including those in Kushina's circle, which gradually turns into a harem - like scenario.
A different plot could involve Naruto traveling back and finding that Sakura has a completely different personality in this harem - set - up. She could be more confident and forward, which catches Naruto off - guard. He then has to adapt to this new Sakura while also exploring his relationships with the other members of the harem. This could lead to some comical and also some very heart - felt moments as he discovers new sides of his friends and potentially falls in love in a whole new way.
One plot idea could be that Naruto time - travels back to the early days in the village. Sakura, being the center of a harem, has different ninja from different clans vying for her attention. Naruto, with his knowledge of the future, tries to navigate this new dynamic while also protecting Sakura from potential threats within the harem. Another could be that Sakura herself time - travels and has to deal with a harem that forms around her in the past, where she has to balance her own goals and the feelings of those in her harem.
One idea could be that they travel back to a crucial moment in the history of the ninja world and change some small events that end up having a huge impact on the future. For example, they prevent a certain battle from happening too early, which gives the ninja villages more time to prepare for a bigger threat that was coming later.
One idea could be that Minato and Kushina travel back to the time when the Hidden Leaf Village was first founded. They could use their modern - day knowledge and skills to help shape the village in new ways, like introducing new jutsu training methods. Another could be that they go back to a time when a great war was about to start and they use their powers to prevent it, thus changing the future of the ninja world.
In some 'naruto and kushina time travel fanfiction', a cool plot point is Naruto and Kushina teaming up in the past. They could use their combined skills to change certain events. For example, they might be able to prevent some of the tragedies that occurred in the original story, like the Uchiha massacre. Naruto could use his knowledge from the future, and Kushina with her strong chakra, would be a great duo.
One idea could be that Naruto travels to a dimension where all the female characters from different Naruto arcs are united. They all fall for his unique charm and his skills as a ninja. He has to balance his new relationships while also finding a way back to his own dimension.
A possible plot could be that Naruto and Kushina are sent back in time due to a powerful jutsu gone wrong. Once in the past, they decide to prevent the Nine - Tails attack on Konoha. Kushina, with her knowledge of sealing techniques and Naruto's combat skills, could work together to stop the masked man who released the Nine - Tails. This would save many lives and change the future for the better.
Obviously, Kushina herself would be a central character. Minato could also be involved, perhaps in a complex relationship triangle with Naruto and Kushina. Then there are other female ninjas like Tsunade. She might be intrigued by Naruto's time - traveling knowledge and get involved in the story. Sakura could also be a potential character. If she somehow gets dragged into the time travel, she might have her own role in the harem - like situation around Naruto.
One idea could be exploring Kushina's life before Naruto was born in more detail. Maybe show her training as a Jinchuriki and how she met Minato. Another could be a story where Naruto gets to time - travel and meets his mother when she was his age. It would be a great chance to see their relationship develop in a different way.
Well, a plot could be that Kushina is a reincarnated goddess. She doesn't know it at first, but she starts having strange dreams and premonitions. As she discovers her true nature, she has to learn how to use her goddess - like abilities, which include things like super - speed and the power to heal any wound. She then uses these powers to fight against a new and powerful enemy that threatens the ninja world.