A unique character could have the ability to communicate with phoenixes in addition to slaying them. This would create an interesting internal conflict as they have to decide when to use their slaying powers and when to try and reason with the phoenixes. Also, they could have a distinct appearance, perhaps with markings on their body that are related to phoenixes, like feathers - shaped tattoos.
Create a character with a unique backstory. Maybe they are from a family that was cursed by a phoenix long ago, and they are on a journey to break the curse by slaying the phoenix that started it all. This would give the character a strong motivation and a lot of depth.
You can give the character a special weapon for slaying phoenixes, like a sword made from a rare material found only in the Naruto world. For example, a sword made from chakra - infused crystals.
You can give the character a special ability related to the chakra cloak. For instance, they could have the power to manipulate the color of the cloak, which might have different effects. Maybe red makes it more offensive, while blue makes it more defensive.
Mix the power systems. Let characters combine their ninjutsu with Honkai powers in unexpected ways. For example, a character could use a water jutsu along with the Herrscher of Ice's powers to create super - powerful ice attacks.
A unique plot could involve a mix of the two worlds' magic systems. For instance, combine the Kuroinu's dark magic with Naruto's ninjutsu. The characters could learn from each other. Say, a Naruto character learns a dark magic spell and has to control its corrupting influence while using it for good.
You can combine the aesthetics of the Badlands with Naruto - style ninja elements. For example, a character could be a nomadic archer who also has some basic wind - style jutsu, inspired by Naruto's own wind - style attacks.
Give them a distinct physical trait. For example, an S - class missing - nin could have heterochromatic eyes, one blue and one red, which is a sign of a special bloodline or a curse. This would make them stand out.
A unique character in a Pokemon shapeshifter fanfic could be a shapeshifting Pokemon that has a special bond with a particular trainer. This Pokemon can only fully control its shapeshifting ability when it's with that trainer. The trainer could be from a family with a special history related to Pokemon shapeshifting, and together they embark on a journey to discover more about this ability.
You can make it unique by introducing a new character who is the catalyst for the yandere harem. For instance, a foreign princess with yandere tendencies visits Konoha and immediately falls for Naruto. Her presence makes the existing female characters in Naruto's life feel threatened, and they also become more yandere - like in response.
Create a character who is an outsider in both worlds. Let's say a character from a different dimension ends up in the Naruto world during a time when the influence of Renai Boukun starts to seep in. This character has to adapt to both the ninja lifestyle and the strange love rules of Renai Boukun, which makes them very unique as they have a different perspective on both.
Think about their backstory. A character who was once a powerful villain but had a change of heart and is now trying to redeem themselves can be very unique. This backstory can influence their actions and relationships within the fanfic. For example, other characters might be initially suspicious of them due to their past, but as the story progresses, they learn to trust the redeemed character.
To create a unique character for a 'lick tickle girl' fanfic, you can start with her appearance. Give her a distinct feature like brightly colored hair or a unique birthmark. Then, think about her personality. Maybe she's really brave when it comes to the 'lick tickle' games but is scared of spiders.