Kakashi Hatake is well - remembered. With his laid - back yet highly skilled nature, his mysterious past including the story of his Sharingan, and his role as a mentor to Naruto and the others, he has left a deep mark on the series.
Sasuke Uchiha is also very memorable. His complex personality, with his thirst for revenge and his inner struggle between darkness and the bonds he has with his friends, makes him a fascinating character. His unique abilities, like the Sharingan, add to his allure.
Another memorable character could be a new character created specifically for the fanfic. Maybe a mysterious ninja who has a complex backstory and strange powers. Their interactions with Naruto and the other established characters would make them stand out.
One of the most memorable battles is the fight between Naruto and Sasuke at the Valley of the End. It's a very emotional and intense battle that showcases their complex relationship.
Naruto is, of course, very memorable. His determination to protect the village against Pain is always a central and inspiring part of any such fanfiction.
Definitely Naruto. He's the main character, and his journey from a nobody to a hero is inspiring. Sakura Haruno is memorable too. She starts as a girl with a crush on Sasuke but grows into a strong kunoichi. Rock Lee is also a great character. He can't use ninjutsu or genjutsu but through sheer hard work in taijutsu, he becomes very powerful. His green jumpsuit and bushy eyebrows are quite the trademark.
Sasuke could also be very memorable. His complex relationship with Naruto and his own quest for power and revenge often add depth to the story. In the fanfic, there could be new twists in his journey, like a new alliance or a new enemy.
In many 'Naruto Knife Fighter' fanfictions, characters like Kira, who has a special ability to infuse chakra into his knives, are quite memorable. His unique fighting style makes him stand out.
There could be some original characters created specifically for the fanfic. For example, a young shinobi from a small village who has a unique power related to nature. This character could have a significant role in the Shinobi Wars, perhaps by forming an unexpected alliance with Naruto and his group. Their journey together, with the new character learning from Naruto and growing, would make them a memorable part of the fanfic.
Well, Mei Terumi can be quite memorable too. As the Mizukage, she has to deal with the internal politics of the Bloody Mist Village while also being a powerful ninja herself. Her unique jutsu, like her lava - style and boil - style ninjutsu, make her a force to be reckoned with.
Perhaps there's an antagonist who has a really complex personality. They're not just pure evil, but have some understandable motives for their actions. This makes them a very interesting and memorable character in the 'naruto the strongest ninja fanfic'.
The Rasengan is one of the most iconic jutsu. It was created by Minato Namikaze and mastered by Naruto. It's a powerful ball of chakra in the palm. Another is the Chidori, which Sasuke uses. It's a high - speed, piercing attack made of lightning - style chakra.