He could be a powerful and respected shinobi from the Uzumaki clan. Given the Uzumaki's reputation for strong chakra and unique abilities, Naruto's grandfather might have been a key figure in the clan's history.
In this kind of fanfiction, Naruto might learn a lot of hidden family secrets. His grandfather could teach him some long - lost jutsu that was unique to their family. Maybe his grandfather would tell him stories about the early days of Konoha, which could give Naruto a new perspective on the village he loves so much.
This might be a story filled with the orphan's struggles and adventures before that fateful meeting. It could explore themes of identity and belonging. The encounter with the grandfather could change the orphan's life completely.
In fanfiction, when Eren meets Levi in the underground, they might initially have a tense encounter. Levi could be suspicious of Eren's motives. For example, he might question Eren's presence there as the underground is a dangerous and lawless place. Eren, on the other hand, could be in awe of Levi's skills and reputation.
It could be an old and powerful wizard who has been in hiding for years. Maybe he was a friend of Dumbledore's but had some differences with him, so he stayed away from the main events in Harry's life until now.
There were a few novels that could be recommended, including How to Stop Death, The Idiot Life from the End of the Marriage, and The Strongest Nanny Dad in the City. The protagonists in these novels lived with their grandfather, and the plots were different. " How to Stop Death " was a fantasy novel about swords and magic. It told the story of a young man who was destined to find his own fate in the process of pursuing justice. " The Idiot's Life from the End of the Marriage " was a light-hearted and funny urban novel. The main character was the second-generation heir, Wang Zhihao. He lived in the countryside with his grandfather, and a series of interesting stories happened. " The City's Strongest Babysitter " was a city-city supernatural novel. The main character was the leader of the Dragon Sect who had become a useless nanny. He and his grandfather had experienced many challenges together. These novels could be used as recommendations for the protagonist and grandfather's life.
The book 'Battle Break's Strongest Villain' met the requirements. The main character, Hun Tianchen, was the young clan leader of the Hun clan. His father was Hun Tiandi. I recommend this book to you, I hope you like this fairy's recommendation, muah ~šš
Well, they might have a deep conversation about their different views on the world. Eren could try to convince Zeke of his more radical approach to saving the Eldians, while Zeke might push back with his own ideas of euthanasia for the Eldians. It could be a very tense encounter.