Well, it could be about a shopkeeper in the Naruto world who has a special shop that sells rare ninja tools. Maybe the shopkeeper has a secret past as a former ninja and uses his knowledge to help young ninjas find the perfect items for their missions.
One possible plot for a 'Naruto shopkeeper' fanfiction is that the shopkeeper discovers a powerful and ancient artifact in his store's attic. This artifact attracts the attention of both good and bad ninjas. The shopkeeper then has to decide whether to sell it, keep it hidden, or use it for the greater good. Along the way, he teams up with some of the well - known Naruto characters like Naruto himself or Kakashi to protect the artifact from falling into the wrong hands.
It could also be a young apprentice of the shopkeeper. This character could be learning the ropes of running the shop while also having dreams of becoming a great ninja. They would be in a position to interact with both the regular customers of the shop and the more famous ninjas, which could lead to all sorts of interesting storylines.
In many such fanfictions, the theme of support is strong. The shopkeeper supports Naruto, whether it's emotional support by listening to his problems or practical support like providing shelter during a storm. There's also the theme of growth. Naruto may grow as a person, becoming more aware of the importance of the little people in the village, and the shopkeeper may also grow in terms of their view of the world outside their shop, seeing the bigger picture of the ninja world through Naruto's adventures.
A really interesting simple shopkeeper Naruto fanfiction could be centered around a female shopkeeper. She runs a flower shop and Naruto often stops by to buy flowers for Hinata. The shopkeeper notices Naruto's love and kindness and starts to see him as more than just a customer. As the story progresses, she becomes like a mentor to Naruto in matters of love, providing him with advice based on her own experiences.
The plot could also involve Naruto trying to convince the Raikage to change some of the Cloud Village's more isolationist policies. As Naruto has a vision of unity among all the ninja villages, he sees the Raikage as a key figure to help him achieve this. The Raikage, initially resistant, might gradually come around to Naruto's way of thinking as they spend more time together.
Well, one possibility could be that Naruto somehow gains the ability to perform bankai. He might use it in a battle against a powerful new enemy. For example, he could combine his own ninja skills with the unique powers of bankai to create a whole new combat style that surprises his foes.
Perhaps in this fanfiction, Naruto discovers that he has some unique weapon - like abilities that are different from his normal jutsu. It could lead to a whole new adventure where he has to learn to control this 'weapon' aspect of himself while still being true to his friends and the village.
Well, one possible plot could be that Naruto discovers a new form of chakra that is related to digital energy. He then uses this to hack into systems to prevent a global digital meltdown that some evil hackers are planning. He teams up with his friends, who also have unique digital abilities, and they fight against the bad guys in the virtual world.
One possible plot could be that Naruto is somehow reincarnated as Fenrir. He might retain some of his ninja abilities but also gain the powers of Fenrir like super strength and the ability to change forms. He could then use these combined powers to protect the Hidden Leaf Village from a new and powerful enemy that normal ninja techniques can't defeat.
Perhaps Naruto is injured while on a solo mission to infiltrate an enemy stronghold. He gets caught and tortured, which leaves him severely injured. Sakura and the others then launch a rescue mission, and during the journey back, they face many challenges in keeping Naruto alive and treating his wounds.
The plot could be centered around a mystery. Yuriko discovers a strange artifact and Naruto, being the curious ninja he is, joins her to figure out what it is. Along the way, they face opponents who also want the artifact for their own malicious purposes.