Yes, it could be popular among Naruto fans. The concept of 'hokage' is central to the Naruto series, and a novel with 'long live hokage' in the title might explore the world, characters, and values related to the hokage. Fans are often interested in stories that expand on the Naruto universe.
Perhaps in this fanfiction, Naruto has some sort of special power or transformation that he unlocks just in time to face Orochimaru. It could be related to his Nine - Tails chakra in a new and unique way. He uses this power to break through Orochimaru's defenses and save Hiruzen. Naruto might also use his knowledge of Orochimaru's weaknesses that he has learned either from Jiraiya or from his own past encounters with Orochimaru's minions.
In the fanfiction, Hiruzen might raise Naruto properly by providing a stable living environment. He could ensure Naruto has a decent place to live, enough food to eat, and warm clothes. This basic care is fundamental for Naruto's growth.
One possible theme is the evolution of the hokage role over time. It could start from the early days of the Hidden Leaf Village and show how the concept of the hokage has changed, including the different powers and responsibilities. Additionally, it might touch on the idea of the hokage as a symbol of hope and unity for the village, and how that has been maintained or challenged throughout the story.
First, you need to have a clear understanding of the characters of Hiruzen and Kushina. Research their personalities, backstories, and relationships in the original Naruto series. Then, think about the plot. Maybe start with a unique situation that brings them together. Also, when writing a lemon, be careful with the descriptions to keep it appropriate yet engaging.
Naruto would be deeply hurt. He has grown up with so little love and acceptance in the village, and Hiruzen was one of the few people he thought cared for him. His reaction could involve a lot of self - reflection. He might question his own worth and what he has done wrong. But ultimately, his positive nature would take over. He would try to understand Hiruzen's reasons, even if he didn't agree with them. And he would strive to find a way to reconcile and make Hiruzen see that he is not a threat.
Maybe Naruto is put in a situation where he feels that Hiruzen's way of handling things is the best option. For instance, if there is a major crisis in the village that requires a more traditional and experienced approach, Naruto might choose to act like Hiruzen. Also, he could be influenced by the stories he has heard about Hiruzen and wants to fill his shoes in a way.
He would probably use his leadership skills. Naruto has grown into a great leader as Hokage. In the past, he could quickly assess situations and lead others, whether it's in a battle or in village - building activities.
Well, for one, Naruto would no longer be in Konoha to influence his friends directly. His friends like Sasuke and Sakura would have to develop without his constant presence. Sasuke, for example, might not have as strong a motivation to become stronger if Naruto wasn't there as a rival. The story could then shift focus to how Konoha copes without Naruto and the potential chaos or stability that follows. Also, Naruto would have to find his own path outside the village, which could lead to him making new allies or enemies.
Their relationship would likely grow stronger. Naruto would gain more respect for Hiruzen as he sees the amount of work the old Hokage has to do. And Hiruzen would see Naruto's eagerness to help and grow. This could lead to Hiruzen giving Naruto more responsibilities within the village.