One memorable way is when he sacrifices his own safety. In some fanfictions, Naruto will take a fatal blow meant for his friend. His selfless nature really shines through in these moments. Another way is by using his words. He can talk down an enemy who is about to harm his friends, using his charisma and the power of his beliefs. It shows that protection doesn't always have to be physical.
It's hard to say for sure. Maybe his friends are characters that are common in the genre it belongs to. They could be fellow students if it's a school - based setting, or comrades in an adventure - filled world. They might have different personalities and abilities that complement Percy's in some way, like one being good at healing and another at finding hidden paths.
One possible reason could be that Naruto is afraid of endangering his friends. He has many powerful enemies, and he might think that by staying away from his friends, they won't be targeted. For example, Orochimaru was always after Sasuke, and Naruto might fear that his closeness to Sasuke could put Sasuke in more danger.
Well, it could be about Percy using his powers to fend off various threats that target his friends. Maybe he has some special abilities like super strength or magic, and he uses them to keep his friends safe from villains or dangerous situations.
In a fanfiction where Naruto protects Ayame, it could be an exciting adventure. Maybe Ayame is in danger from rogue ninjas. Naruto, with his strong ninja skills and determination, jumps in to safeguard her. He might use his shadow clone jutsu to confuse the enemies and then his Rasengan to defeat them, ensuring Ayame's safety.
Often, there is a part where Naruto has to prove himself to his sister or gain her trust. Since she may not know him well or may be scared at first. Also, Naruto usually has to overcome his own limitations in power to be able to protect her effectively. For example, he might have to learn a new jutsu or master an existing one in a short time. And there is always the emotional aspect of the bond between them growing stronger as he protects her from different perils.
One good 'naruto protects his little sister fanfiction' is 'Naruto's Unwavering Shield'. In this story, Naruto discovers he has a long - lost sister. When she is in danger from a rogue ninja group, Naruto uses all his skills and the power of the Nine - Tails to protect her. He faces many challenges and near - defeats but his determination never wavers.
Typically, Naruto is known for his deep love and loyalty towards his friends. Fanfiction that has Naruto hating his friends is probably a deviation from the traditional understanding of the character. It might be used to explore some extreme scenarios, like if he was under some sort of mind control or if there was a huge misunderstanding. But in the mainstream Naruto - themed fanfiction, this is not a common occurrence.
In this fanfiction scenario, Naruto and his friends would likely be extremely confused by Cell. Naruto might immediately jump into action, ready to fight. His friends, like Sasuke, would probably assess the situation carefully. Maybe Sakura would be a bit scared at first but then gather her courage. They would have to quickly figure out Cell's abilities, which are very different from the foes they usually face in their own ninja world.
Naruto's power might also be affected. If he was betrayed, he could lose the will to fight or train. He might even start to doubt his own purpose. This could lead to a decline in his abilities, which in turn could put the village at risk if he was its main protector.