Well, a cool plot might be that the Date A Live characters end up in the Naruto world. The Spirits' powers could be a mystery to the ninja there. For example, Tohka's power could be mistaken for some new kind of chakra - based ability. And Shido could learn some ninja skills from Naruto and his friends. They could all work together to face a common threat that emerges in the Naruto world, like a new group of rogue ninja who are after the Spirits' powers.
One possible plot could be that Naruto and his friends are somehow transported to the world of Date A Live. Naruto, with his determination and never - give - up attitude, could team up with Shido to fight against the Spirits that are causing chaos. Maybe Naruto's jutsu can be used in unique ways to deal with the Spirit - related problems, like using his Shadow Clone Jutsu to distract the Spirits while Shido tries to seal them.
In a 'Naruto in Date A Live' fanfiction, Naruto could be a key figure in preventing a total war between the Spirits and humans. His ability to understand and empathize with outcasts (like he did with Gaara) could help him communicate with the Spirits on a deeper level. He could teach Shido some of his ninja techniques to better protect the Spirits and also use his own chakra to help stabilize the space - quakes caused by the Spirits, thus bringing a new hope for peace in the Date A Live world.
A plot idea could be that a powerful Spirit in Date A Live is somehow transported to the Naruto world. This Spirit's power causes chaos, and Naruto and his friends have to figure out how to send it back. Along the way, they discover that the Spirit has a tragic past similar to some of the characters in Naruto. This leads to an unexpected bond between them.
One possible plot could be that the Date A Live characters somehow end up in the Harry Potter universe. Maybe they are there to stop a new kind of threat that combines the magic from the Potter world and the spirits' powers from Date A Live. The wizards are initially suspicious of them but then realize they need to work together.
The plot might involve a threat that requires both the Naruto universe and the Date A Live universe to work together. For example, a powerful enemy that is immune to normal attacks in both worlds. So, the characters from both would have to combine their unique abilities. Shido from Date A Live could use his power to calm spirits while Naruto uses his shadow clones to create diversions. It would be a story full of action, adventure, and some really cool power combinations.
Definitely Naruto and Tohka. Naruto's exuberant and positive personality would contrast with Tohka's more straightforward and sometimes naive nature. They could have some really fun exchanges, like Naruto trying to teach Tohka about ninja values and Tohka showing Naruto her unique way of enjoying food. It would be an interesting dynamic to explore.
One idea could be exploring an alternate universe where the Spirits and the main character have different initial meetings. For example, instead of meeting in a battle - like situation, they meet in a peaceful school event. Another plot could involve a Spirit who has lost her powers and the main character has to help her regain them without using the usual methods. It could lead to a whole new adventure and deeper understanding between them.
The power combinations are also really fascinating. When Naruto's chakra - based powers are combined with the Spirits' abilities in Date A Live, it can lead to some really unique and powerful new abilities. For example, if Naruto were to combine his Sage Mode with a Spirit's power, it could create a whole new level of combat ability. This allows for some very creative fight scenes in the fanfiction.
One possible plot could be that the Juubi somehow gets transported to the Naruto world during a strange rift in space - time. Naruto and his friends have to figure out how to deal with this powerful and chaotic entity. They might initially try to fight it, but then realize they need to find a way to seal it again, like they did with the other tailed beasts. This could lead to new alliances and power - ups for the characters as they struggle to protect their world.
A cool plot could be that the Sage of Six Paths in Naruto's world had a connection to Skyrim long ago. When Naruto unlocks some hidden power within himself, it accidentally triggers a link to Skyrim. Once in Skyrim, he discovers that his chakra is linked to the dragon shouts. He has to go on a quest to learn more about this connection. He meets the mages in the College of Winterhold, who are fascinated by his chakra abilities. Together, they try to figure out a way to use Naruto's power to stop a great evil that is threatening both Skyrim and, through the link, Naruto's own world.
One possible plot could be that the Avengers are somehow transported to the Naruto universe. They team up with Naruto and his friends to fight a common enemy like Kaguya who has somehow obtained the Infinity Stones. The Avengers' powers and technology would be a huge shock to the Naruto world, and they'd have to learn to combine their skills to succeed.