She could be a time - traveler. The blue hair is a sign that she's from a future time where genetic modifications are common. She travels back in time to prevent a major disaster from happening. Along the way, she has to deal with the disbelief and fear of the people in the past, but she also finds allies who are intrigued by her blue hair and the knowledge she brings from the future. They work together to change the course of history.
One plot idea could be that the girl with blue hair discovers she has a special power related to water because of her hair color. For example, she can control the flow of water in rivers or make it rain in a drought - stricken area. Another idea is that she comes from a different dimension where blue - haired people are the rulers, and she's on a mission to find a way to bring peace between her dimension and ours. Maybe she meets a boy who at first is scared of her because of her unique appearance but then they become friends and he helps her in her mission.
A plot could revolve around the girl with blue hair being an artist. Her blue hair is a symbol of her creativity, and she uses it to inspire her art. She enters an art competition, but there are some who are jealous of her unique look and try to sabotage her. However, with the help of her friends and her own determination, she overcomes the obstacles and creates a masterpiece that not only wins the competition but also changes the way people view those who are different.
One idea could be that Naruto's blue hair is a sign of a new, powerful chakra form. He has to learn to control it while his friends are both amazed and a bit scared. For example, Sasuke might initially see it as a threat to his own power.
One plot idea could be a girl trainer in the Pokemon Red and Blue world who discovers a rare and powerful Pokemon that no one has ever seen before. She has to protect it from evil teams who want to use it for their own gain.
One plot idea could be that as a girl, Naruto faces different challenges in the ninja academy. Instead of the typical male bravado, she might use her wits and charm more. For example, she could befriend Ino and Sakura in a different way, perhaps forming a more united girl - power trio against the boys. Another idea is that her red hair makes her stand out even more in the Hidden Leaf Village, leading to some superstitions or special expectations from the villagers. Maybe she's seen as a symbol of change or something new in the village's future.
Another story could be that the blue - haired girl is from a different planet. She crash - lands on Earth and has to learn to adapt to the strange new environment. She meets a kind human family who takes her in. At first, she has trouble understanding things like gravity and the concept of different seasons. But as time passes, she not only adapts but also shares her advanced knowledge from her home planet with the humans, for instance, a new way of generating clean energy.
One idea could be exploring the backstory of a minor character in the Blue Exorcist world. For example, you could write about the life of a lower - level demon that Rin and the others encounter. Another idea is a time - travel fanfiction where a character goes back to a crucial moment in the Blue Exorcist timeline and changes something, leading to a whole new set of events. Maybe a character gets sent to an alternate dimension where the rules of exorcism are different.
Maybe Naruto's new hair is the result of a cross - dimensional encounter. He accidentally travels to a parallel world where all the characters have different hair styles. When he returns to his own world, his hair has changed to a style that combines elements from both worlds. This new hair then becomes a link between the two dimensions, and he has to use it to prevent a threat that is spreading across both universes.
One idea could be a story where Naruto has an orange - haired relative who comes to the village. This relative has a unique jutsu that only the orange - haired members of their family can use. Another plot could be about an orange - haired character who is a big fan of Naruto and tries to follow in his footsteps, facing many challenges along the way. And a third plot might be a time - travel story where Naruto meets an orange - haired version of himself from an alternate dimension.
One idea could be that Naruto, with long hair, discovers a new form of chakra that is only accessible when his hair is long. This new power could lead to him having to master new techniques and face different challenges. For example, he might have to learn how to control his hair during battles so it doesn't get in the way of his movements while still being able to use it as a weapon or a tool for his new chakra - based abilities.
One idea could be creating a story where the main character is a new trainer in the 'pokemon silver and blue' world and has to overcome a unique challenge, like a strange new pokemon species that is causing chaos. Another could be a story about a trainer who gets lost in an unexplored area of the game's map and discovers hidden pokemon with extraordinary powers.
A great plot could be about a group of trainers in the Pokemon Blue and Green world who come together to stop an evil organization from using an ancient Pokemon power for their own gain. They have to travel across different regions, face many challenges, and form strong bonds with their Pokemon along the way. It would be a story full of friendship, action, and mystery.