Well, first of all, his abilities should set him apart. He could have a natural talent for genjutsu, while Naruto struggles with it. His personality traits can be explored in relation to Naruto. If Naruto is the sunny optimist, the twin could be the brooding type, with a darker sense of humor. His relationships with the other villagers would also be a factor. He might not be as well - liked as Naruto at first, but as the story progresses, he earns their respect in his own way. Additionally, his reactions to Naruto's fame and how he carves out his own identity within the shinobi world are crucial for developing his character.
As the story progresses, they could start to realize that they are stronger together. They might face a common enemy that forces them to work as a team. Through shared experiences like training together and fighting side by side, their relationship turns into a strong bond of brotherhood.
The twin brother's character might be developed based on his past. If he had a difficult childhood, it could make him more reserved or cautious. But as he gets to know Naruto and Sakura, he starts to open up. He could start as a loner type, but as he gets involved in their adventures, he becomes more social and confident. He might also develop his character by exploring his own unique abilities and how they can be used for good.
He found a novel about the twin brother. This novel was called " Loving You Just Accidentally ". The male protagonist was a fraternal brother and younger brother. The female protagonist first met her younger brother, then her older brother. Then, she fell into a relationship with her older brother, unable to extricate herself. At the same time, she struggled with her feelings for her younger brother. This novel might meet your needs. I hope you will like it.
A good way to create a compelling character for the twin brother is to make his powers have a cost. For instance, every time he uses a powerful Devil May Cry - style attack, it drains his chakra like in Naruto. This creates internal conflict as he has to balance when and how to use his abilities. Also, give him relationships that are complex, like having a love - hate relationship with a character from the Naruto world who is suspicious of his Devil May Cry powers, and at the same time, having a mentor - like figure from the Devil May Cry world who is trying to help him control his Naruto powers.
One possible fanfiction idea could be that Hinata's twin brother is a prodigy in a different ninja art than Hinata. He might be more focused on offensive taijutsu techniques, while Hinata is known for her gentle fist. This could create an interesting dynamic within the Hyuga clan as they both grow and develop their skills.
In some fanfics, the twin brother might have a special bond with a female character. For instance, Sakura could be intrigued by the twin brother's different personality compared to Naruto. She might initially be confused about her feelings towards both brothers, which could add a romantic sub - plot to the story along with all the ninja action.
One factor that makes it interesting is the potential for new storylines. For instance, the twin brother could have a different chakra nature or a special ability that Naruto doesn't have. This can lead to all sorts of adventures and conflicts. Also, exploring the relationship between the two brothers, whether it's a friendly rivalry or a more complex emotional bond, can be really engaging for readers.
Power is also a common theme. Some fanfics explore if Menma has different powers than Naruto or how he develops his powers. There's also the theme of acceptance. How the village and the other characters accept Menma, especially considering Naruto's presence. For example, in some fanfics, Menma has to prove himself more because Naruto is already well - known. This creates a lot of interesting conflict and storylines.
Maybe the twin brother was separated from Naruto at birth and raised in a different village. When they finally meet, they initially clash due to their different upbringings and loyalties, but then gradually come to understand and support each other. This would create a lot of drama and character development.