I think Hinata could be an ally. She has always been in love with Naruto and would not stand by while he is in danger from Dark Naruto. Additionally, Shikamaru is smart and strategic. He might see the threat of Dark Naruto to the village and decide to assist Naruto, using his intelligence to come up with battle plans.
Another theme is self - discovery. As Naruto faces his dark side, he often learns more about his true nature, his powers, and his place in the ninja world. It's like a journey of self - exploration but with a dark and dangerous twist.
In some fanfictions, it could be through a special jutsu. Maybe Naruto discovers a long - forgotten jutsu that allows him to merge with his dark counterpart. This jutsu might require a great deal of chakra control and concentration.
Often, 'dark naruto' in this type of fanfiction could have a more complex set of motives. He may not be as straightforward as the original Naruto. His relationships within the harem might be filled with power dynamics, where he uses his newfound 'dark' qualities to either protect or control the characters in the harem. It could also mean that his moral compass is a bit skewed, leading to more morally ambiguous decisions.
Dark Naruto might have a more menacing look. His eyes could be a deeper shade of red, like a more intense version of the Kyuubi's eyes. His hair might also be a bit wilder, as if constantly affected by the Kyuubi's chakra.
One consequence could be an increase in Naruto's power. Since Dark Naruto represents his repressed negative emotions and power, absorbing it might give him a boost in strength and abilities. He could gain new jutsu or have enhanced versions of his existing ones.
Sasuke, on the other hand, would be more calculating. He'd study the enemies' patterns carefully. In the Dark Souls setting, he'd likely focus on finding the most powerful weapons and armor. He might even try to master some of the Dark Souls - specific combat techniques. His Sharingan would give him an edge in quickly analyzing the situation, much like it does in the Naruto series when he faces tough opponents.
It can contribute by offering new perspectives. Fans get to see different versions of beloved characters. For instance, Dark Naruto can show how the character of Naruto could have turned out if he had faced different circumstances. Tayuya's role can also be expanded upon, giving fans more in - depth understanding of her character. This enriches the overall Naruto fandom.
A 'dark emotionless Naruto' changes the Naruto universe significantly in fanfiction. For one, his relationships with other characters are completely different. He no longer forms the same emotional bonds, which can lead to alliances and rivalries being formed in new ways. For instance, his bond with Sasuke might be more about power and less about friendship. Also, his decision - making process is altered. Instead of acting on his emotions like the original Naruto, he makes cold, calculated choices that can have far - reaching consequences for the ninja villages.
One popular 'naruto and dark naruto fanfiction' is 'The Dark Within'. It explores the internal struggle Naruto has with his darker self in a really interesting way. The author does a great job of showing how Naruto's positive nature clashes with the emerging dark side.