The story could start with Naruto suddenly finding himself in the past with Kushina. He'd be shocked at first but then realize the potential of his Rinnegan in this new situation. He might start by using it to gather information about the past and any threats that could harm Kushina or the village in the future.
Towards the end of the fanfiction, their actions in the past would start to have consequences in the future. Maybe Naruto has changed the past so much that the future he came from no longer exists in the same way. He and Kushina would then have to figure out how to deal with this new future. It could be a world where there is more peace and unity among the ninja clans, all because of their time - traveling adventure and Naruto's Rinnegan - powered interventions.
If Naruto had the Rinnegan and could time travel, one possible way the story could unfold is that he might go back to prevent some of the great tragedies in the Naruto world. For example, he could stop the Uchiha massacre. With the power of the Rinnegan, he would be able to anticipate and counteract the actions of Itachi and Danzo. He could also use his time - traveling ability to gain more knowledge about the origin of the ninja world and the secrets of chakra, which could make him even more powerful and better equipped to protect his village and friends.
Well, if Naruto had the Sharingan and Rinnegan in a fanfiction, he'd be insanely powerful. He could use the Sharingan's abilities like predicting movements and copying jutsu, and the Rinnegan's powers which are even more god - like. Maybe he'd use the Rinnegan to access different dimensions and with the Sharingan, be an even better fighter in close combat. His enemies would be completely outmatched.
Their relationship would likely become more of a partnership. With the power of the Rinnegan, they would be equals in a sense. Kushina would no longer just be Naruto's mother but also his comrade in arms. They would rely on each other's unique abilities that come with the Rinnegan, sharing knowledge and strategies.
Well, one possibility is that Naruto with the Rinnegan could use his newfound power to protect Kushina during their time travel. Maybe he can prevent some of the tragedies that happened in the past. For example, he could stop the Nine - Tails attack on the village by controlling the beast in a more efficient way with his Rinnegan powers.
The story could start with Naruto suddenly finding himself in the past with Team Minato. At first, Minato and the others might be suspicious of him. But Naruto could prove his worth by showing his combat skills. Since he has experience fighting powerful enemies, he could assist Team Minato in their missions more effectively. His presence could also change the relationships within the team. For instance, he might form a special bond with Kakashi, influencing Kakashi's development in a new way.
Well, when it comes to Naruto time travel and Rinnegan in fanfics, it's often about exploring new storylines. Maybe Naruto himself gets the Rinnegan and travels back in time to train his younger self. This would make him a much more powerful ninja at an earlier stage and could completely change the power balance in the Hidden Leaf Village and among the other ninja villages as well.
The Rinnegan can be used in time travel fanfiction in Naruto in various ways. It could be used to open portals to different time periods, kind of like how it can create spatial portals in the original series. For example, a character might use the Rinnegan to travel back to the era of the First Hokage to gain knowledge or power.
At first, their relationship might be one of mistrust. Anko would be wary of this Naruto with the strange Rinnegan who claims to be from the future. But as they face challenges together during their time - traveling adventures, they would start to respect each other. Eventually, they could become friends or even more, depending on how the story unfolds.
The Rinnegan's time travel can completely change character relationships. For example, if a character travels back in time, they might meet their friends or enemies at a different stage of their lives. In a harem fanfiction, this could mean that a male character meets a female character before she has certain prejudices or before she has fallen in love with someone else. So, the time travel allows for a fresh start in the relationship.
Well, it could start with a character accidentally activating a time - travel device during a Halo Wars battle. They might end up in a future where the war has changed the galaxy beyond recognition. Maybe the Covenant has completely taken over, or the UNSC has developed some super - advanced technology to fight back. The character then has to figure out how to use their knowledge from the past to either change the future for the better or just survive in this new, strange future.