The combination of Naruto and Irisviel in a harem setting is quite unique. Naruto is from a world of ninjas with his own set of values and powers, while Irisviel is from a different fictional universe with her own charm. In a harem fanfic, it allows for an interesting blend of different cultures and power systems. It can create new and unexpected storylines.
Well, there might be some out there. You can try looking on fanfiction websites like FanFiction.net or Archive of Our Own. Just search for 'naruto irisviel harem' and you might find some interesting reads. However, the quality can vary greatly from one story to another.
In a 'naruto is in a au harem fanfic', aside from the obvious choices like Sakura and Hinata, characters like Temari could be in Naruto's harem. She's from another village and has a strong personality. Her presence would bring in an element of cross - village relations. Karui is also a possibility. She's feisty and has her own set of skills. And then there's Kurenai, the jonin. She could be an interesting addition to the harem, with her experience and calm demeanor.
One possible plot could be that Irisviel summons Archer Shirou in a world where Arturia already exists. Maybe Irisviel has a specific plan to use Archer's abilities to help Arturia in some great battle or quest. Archer might initially be reluctant to work with Arturia due to their past differences, but as the story progresses, they start to understand each other better and form a strong alliance.
Archer and Arturia would likely start off with a bit of friction. Archer, being from a different time and having his own set of beliefs, might clash with Arturia's more traditional knightly values. However, as they face challenges together, they would gradually learn to respect each other. Irisviel would be the mediator, guiding their interactions and making sure they stay focused on the task at hand.
One of the popular characters is Hinata from Naruto itself. Since she already has feelings for Naruto in the original series, she is often part of the harem in crossover fanfics too. From other series, Lucy from Fairy Tail is also common. Her magical abilities and her kind - hearted nature can blend well with Naruto's character. Additionally, Saber from Fate/stay night is often included. Her noble and powerful presence can add a different flavor to Naruto's harem.
There probably are. While the 'lemon' genre is quite popular in some fanfic circles, not all writers are interested in that aspect. Some might be more interested in exploring the emotional and social implications of a Naruto having a pregnant harem. For example, how the different characters interact, how they handle the situation within the context of the Naruto world's culture and values.
Good character development is key. For example, Naruto should still retain his core traits while also evolving in his relationships. If he's in a harem, he needs to grow as he deals with multiple romantic interests.
The popularity of 'naruto no harem fanfic' lies in the expansion of the Naruto universe. Fans get to see Naruto in new relationships with multiple characters, which adds a different dimension to the story they already love.
I'm not entirely sure as it's a fanfic. But generally in a Naruto harem fanfic, it might involve Naruto having multiple romantic relationships with different female characters from the Naruto series, like Sakura, Hinata, and others. However, without reading the specific 'prototype' one, it's hard to say the exact plot.