I'm not entirely sure as I haven't read this specific fanfiction. But it might be a story that combines elements of the 'Naruto' universe with the idea of Naruto being the'son of Gondor' which could involve some sort of crossover between the Naruto world and the lore of Gondor from Middle - earth. Maybe it has Naruto possessing some of the traits or powers associated with Gondor.
Some popular ones could be 'Sword of the Rohan' which is known for its epic battles and complex characters. Another might be 'Rohan's Quest', a story full of mystery and adventure.
There could be multiple factors. His role models, whether they were his teachers, older siblings, or people he read about in books, might have inspired him. Also, the realization that hard work brings rewards, like good grades, praise from others, and a sense of accomplishment, would have made him keep up his hardworking attitude.
You could try searching on popular fanfiction websites like FanFiction.net or Archive of Our Own (AO3). Just type in 'naruto son of gondor' in their search bars and see if any relevant stories pop up.
He'd probably rule with a sense of fairness. Harry has always been one to fight for what's right at Hogwarts, so in Gondor, he'd ensure justice for all. He might set up new laws that protect the weak and punish the wrongdoers severely.
Popular 'rohan x josuke fanfic' often focus on their unique dynamic. They might play up Rohan's eccentricity and Josuke's more straightforward nature. Also, a lot of them involve some sort of mystery or adventure that the two characters embark on together.
It could be about a conspiracy within the Rohan setting. Maybe it involves political intrigue among the Rohan characters, like a plot to overthrow the king or some secret alliance that goes against the common good in the Rohan realm.
Rohan was a boy who always put in great effort in everything he did. He woke up early every morning to study before school. He was dedicated to his schoolwork, always completing his assignments on time and with high quality. He also helped his parents around the house, doing chores without being asked. His hard work paid off as he got excellent grades and was respected by his teachers and peers.