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.
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.
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.
First, you can start with his appearance. He could look similar to Twilight but have some distinct features, like a different color in his mane or tail. In terms of personality, he might be more outgoing than Twilight. For example, he could be the type to easily make friends with everypony he meets. This would contrast with Twilight who can be a bit more reserved in new social situations.
Another way their personalities could differ is in their sense of humor. Ruby has a more light - hearted and sometimes goofy sense of humor. The twin brother could have a drier, more sarcastic sense of humor. For instance, when Ruby makes a joke, he might respond with a deadpan comment that shows his different comedic style.
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.
One possible plot could be that they discover their brotherhood through a mysterious force. Maybe Naruto is on a mission and gets transported to the One Piece world. There, he meets Ace and they somehow sense a connection. Then they start to explore their shared past and figure out they are brothers. Along the way, they face challenges together, with Naruto using his ninja techniques and Ace his pirate powers.
Well, in the original Naruto and One Piece universes, Naruto has no relation to Ace. However, in fanfiction, anything can be possible. Writers can create an alternate universe where Naruto is Ace's brother through creative plot devices. They might come up with some sort of cross - dimensional or magical connection that binds them as brothers.
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.