One possible plot could be that Naruto discovers a hidden power within himself that is similar to the devil trigger. This new power might make him more aggressive and powerful. He could struggle to control it at first, and his friends might be initially afraid of this new side of him. But as the story progresses, he learns to master it and use it for good, like protecting the village from a new and powerful enemy.
A new character could be introduced as the main villain. For example, a powerful demon from another realm who has the Devil Trigger ability and wants to conquer Naruto's world. This demon could have minions with similar powers and Naruto would have to figure out their weaknesses in order to defeat them.
One idea could be Naruto somehow getting a Devil Trigger power during a battle with a powerful new enemy. Maybe he discovers an ancient artifact that fuses with his chakra and gives him this new ability.
One interesting plot idea could be a crossover between the Devil May Cry universe and the Castlevania universe. The protagonist with Devil Trigger ability could find himself in the dark and haunted world of Castlevania. He has to use his powers to fight off the hordes of demons and undead creatures that are native to Castlevania. Maybe he teams up with a Belmont character and they exchange combat techniques and knowledge about their respective worlds.
If Naruto had the devil trigger in a fanfiction, it would change his character a great deal. His usual carefree and optimistic attitude could be replaced by a more cautious and sometimes even menacing one when the power takes over. He would constantly be at war with himself, between his normal self and the self that the devil trigger brings out. His relationships with his friends might also change. Some might be more wary of him, while others would try to help him through this transformation. And he would have to re - evaluate his ninja way in the face of this new and powerful force inside him.
To write good character interactions, first, understand the personalities of the characters from each universe. For example, if it's a crossover between Devil May Cry and Kingdom Hearts, Dante from Devil May Cry is a cocky and confident fighter. Sora from Kingdom Hearts is more naive but determined. Their interactions could start with Dante being amused by Sora's innocence and Sora being a bit intimidated by Dante's devilish appearance. Then as they face common enemies, they start to respect each other's skills.
The unique world - building. It creates a world where there are different dimensions and threats from outside. The idea of the 'Triggers' which are the weapons and tools used by the characters is really cool.
There is also Yuma Kuga. He is a very strong and unique character with special abilities. His combat skills and his background play important roles in the story development. He is from outside the world as we know it in the context of the novel, which makes his character full of mystery and interest.
The characters in the movie included the male protagonist, Lin Shouxi, who knew the male and guarded the female. He was the stream of the world. The female protagonist, Xiao He, was the beautiful girl in the snow-blue dress, Xiao He. The female protagonist, Mu Shijing, was the sword immortal of the Taoist sect. The female protagonist, Chu Yingchan, was the Little Senior Sister. The female protagonist, Master, was Master. The female protagonist, Bai Zhu, was good. Bai Zhu encountered bad things. The female protagonist, Tri-colored Cat, was a cat who loved to write!
"I Will Bury the Gods" Author: Jian Yi Si Jian. It is a Xianxia/Mythological Cultivation novel with calm, fast-paced, positive energy, classical Xianxia, leveling-up flow, and goddess elements. It has been completed and can be enjoyed without worry.
User recommendation: "I Will Bury the Gods" is an unforgettable web novel. Although it was the type that didn't pay much attention to leveling up, it paid more attention to the story and writing style. The author's style of writing is similar to the new Wuxia novel that I've read before. It makes people feel close. At first, he thought that this was a fantasy epic drama, but as the story developed, he realized that it was actually a sweet couple drama. Although it was a little disappointing in some places, overall, this book was very worth recommending. Especially the author's writing style. It was very tasteful and made people immerse themselves in it. For those who liked the description of female characters, this book was not to be missed. Even though the author was about to change his account number, his work was definitely very recognizable. All in all, this book was a book that was more than food. To some people, it might be a book that was an immortal herb. Finally, I want to say that this introduction is not against the rules.
I hope you will like this book.