Kawaki makes his appearance in Boruto manga at a specific point, but I can't recall exactly. You might want to check the official manga sources for the precise chapter.
It depends on the context. If it's a battle of pure physical strength and chakra, Naruto might have the edge as he has years of experience and has faced more powerful foes. But Boruto has some unique abilities like his Jougan. So if the fight involves using new - age ninja techniques, Boruto could surprise Naruto.
It could also be related to a prophecy or a pre - determined fate in the fanfic's plot. There might be some kind of dark prophecy that says Kawaki has to kill Naruto to prevent a greater evil. Or perhaps Kawaki is being controlled by an external force that has a vendetta against Naruto and uses Kawaki as a tool to carry out the murder.
The Shindo Life story involves a world filled with ninjas and various elemental powers. Players embark on a journey to become powerful ninjas, facing challenges like battles against other players or powerful in - game bosses. They can train, upgrade their skills and unlock new abilities as they progress through the story.
Maybe a fanfic where Naruto and Boruto are pitted against each other in a virtual reality battle. It could be part of a training exercise that gets out of control, and they start using their real skills and emotions, leading to a intense and revealing fight.
In Shindo Life story, the main character is of course the player's avatar, a ninja. But there are also important NPCs. For example, the village elders play a crucial role. They are the ones who often give out important quests and advice. And then there are the rival ninjas from other clans. They can be considered main characters in a sense as they drive the story forward through their actions and interactions with the player's ninja.