A lemon - themed ninja from a far - off land could be introduced. This ninja could have powers related to lemons, like being able to shoot acidic lemon juice as an attack or use the peel to create a shield. He might initially be hostile towards Naruto but later become an ally.
There could be a spirit of the deserted island that takes the form of a lemur - like creature. It guards the lemon groves on the island and has the ability to communicate with Naruto telepathically. It could teach Naruto ancient island survival skills and secrets about the power of lemons.
A group of pirates who are also searching for the legendary lemon on the deserted island could be added. They are tough and have their own unique fighting styles. Naruto has to either fight them off or team up with them to get to the bottom of the mystery of the island's lemons.
One possible plot could be that Naruto is stranded on a deserted island and discovers a strange lemon - like fruit that gives him unique powers. He then has to figure out how to survive on the island while also dealing with the strange effects of the fruit.
Obviously Naruto would be one of the main characters. Sakura could also be there. She could use her medical knowledge to figure out if the lemons have any special healing properties.
A possible plot for this fanfic could involve Naruto being teleported to a deserted island which has an abundance of lemon trees. As he tries to figure out how to get back home, he starts to experiment with the lemons. He might find that the lemons have some sort of energy that he can harness. This could attract the attention of some local island spirits or creatures. Naruto then has to use his ninja powers and the power of the lemons to either befriend or defeat these beings in order to find a way off the island.
There's a chance it could be a spirit of some sort. In the Naruto world, there are many spiritual elements. A spirit that has been bound to the island for ages could appear to Naruto. This spirit could guide him to hidden treasures or teach him some ancient ninja wisdom that has been lost in the modern ninja world.
Another idea for the Naruto deserted island fanfic is that Naruto is sent to the island as a form of training. He initially struggles to adapt to the harsh environment. However, as time passes, he learns to control his chakra in new ways, perhaps by using the natural elements of the island. He could also meet a hermit on the island who teaches him some unique ninja techniques.
Naruto could potentially find some ancient ninja artifacts on the deserted island. These artifacts could hold great power or knowledge. He would then have to figure out how to use or protect them. There could also be some sort of mystery on the island, like a hidden cave with strange markings. Naruto, being the curious and adventurous type, would surely try to solve the mystery. This could lead to him learning new jutsu or uncovering secrets about the ninja world's past.
He could meet a lost shinobi from a different village. This shinobi might have been stranded there for a long time and has some valuable knowledge or skills that Naruto could learn from.
One possible plot could be that Naruto is somehow transported to Total Drama Island. He gets involved in the challenges there with his ninja skills, which both amaze and annoy the other contestants. As for the 'lemon' aspect, perhaps there could be a budding romance between Naruto and one of the Total Drama Island characters, like Gwen. They could have some steamy, yet comical, encounters during their time on the island.
One interesting Naruto Island lemon fanfiction could be about Naruto exploring a hidden part of the island and having a unique adventure there. Maybe he discovers a new type of chakra source. Another could involve Naruto making new friends on the island who have special abilities. However, it's important to note that 'lemon' in fanfiction often implies some level of romantic or sensual content, but in a non - explicit way in many cases.
A new type of sage could be introduced, maybe from a dimension where sages have different powers and appearances. Or a group of shadowy assassins from a dimension that specializes in stealth and assassination techniques far beyond what Konoha has seen. Another character could be a talking tailed beast from a dimension where they have more sentience and can communicate freely with humans.