One popular original character could be a female swordsman with a unique sword - style that combines speed and grace. Another might be an older, grizzled swordsman who acts as a mentor to the younger generation. There could also be a mysterious swordsman with a hidden past and a sword that has strange markings.
Kakashi is another popular choice. His Sharingan and his experience with different types of weapons make him a great candidate for a demon swordsman in fanfiction. He could be given a demon sword with special abilities that tie in with his existing skills, like the ability to copy sword techniques even better or use his Sharingan to see the weaknesses of the demon within the sword.
One interesting plotline could be a young swordsman in the Naruto world discovering a long - lost sword with unique powers. This sword might have a connection to an ancient clan or a forgotten jutsu. Another plotline could involve a swordsman's journey to master different sword - fighting styles from various ninja villages.
Naruto himself is obviously a must - include. His journey from an outcast to a hero is full of potential for new stories. Sasuke is also very popular. His complex personality and his search for power make for great plotlines. Sakura can't be left out either. Her growth as a kunoichi and her relationship with Naruto and Sasuke are always interesting to explore.
The Snakes, especially those related to Orochimaru's summons, are often used in fanfiction. They can bring an element of mystery and danger. Some fanfictions might explore the idea of a redeemed snake summon that helps Naruto in his quests, or a more powerful, ancient snake that was hidden away until now.
In naruto cultivation fanfiction, some original characters are masters of a forgotten or forbidden cultivation technique. They might be outcasts because of their use of this technique, but they have extraordinary power. They can befriend the main characters and teach them parts of this technique, which then changes the way the main characters approach their own cultivation and growth.
One popular original character could be Hiro. He's a medic nin who is a bit of a rebel. He doesn't follow the traditional medic nin rules and instead experiments with unorthodox healing methods. His methods are initially frowned upon, but as he starts getting results, he gains a following among the younger medic nins. Another is Nami, a shy but highly skilled medic nin. She has a special bond with animals and often uses her knowledge of animal healing to develop new techniques for human healing. And there's Taro, a strong - willed medic nin who was born in a small village and travels to the big ninja villages to share his unique knowledge of a local - only healing art.
Often, the antagonists in these fanfictions are popular. Imagine an evil team that wants to capture the legendary starter for their own dark purposes. Their leaders, with their devious plans and menacing auras, can draw a lot of attention. Another popular character could be an old sage - like figure who has knowledge about the legendary starters and can offer guidance to the main characters.
One popular storyline could be a swordsman from another land coming to the Naruto universe and challenging the ninja. For example, he might seek out Sasuke or Naruto to test his skills. Another could be a swordsman who has a unique Kekkei Genkai related to his swordsmanship and teams up with the Konoha ninjas to fight a common enemy. Maybe a story where a swordsman is on a quest to find the most powerful sword in the Naruto world, which is said to be hidden in an ancient and dangerous place.
Well, of course, the Ronnin himself is a main character. He's likely to be a highly skilled and experienced ninja. There could also be a young, aspiring ninja who looks up to the Ronnin and follows him on his adventures. This young ninja could be from a small, unassuming village.
In medical ninja Naruto fanfiction, there's often an original character like Hana. She's a medical ninja who was born into a family of non - ninjas but showed great talent early on. Hana is really good at using herbs and natural remedies along with her chakra for healing. Then there's Kai, a male character who is a bit of a maverick. He has his own unorthodox methods of treating patients, but they often work. And Suki, a female medical ninja who is very skilled at using acupuncture - like techniques with chakra to heal internal injuries.