The plot might involve Naruto being summoned to the Fate Stay Night world by accident. There, he catches the attention of Fem Gilgamesh. She could be intrigued by his unique chakra and his ability to keep getting back up no matter how many times he is knocked down. They might then embark on a journey to find a way to send Naruto back home. Along the way, they face various challenges and enemies. Naruto could teach Fem Gilgamesh about the value of friendship and hard work, which are concepts not as emphasized in her world, while she could introduce Naruto to the complex magic and power hierarchies of the Fate world.
Naruto's chakra - based powers and Fem Gilgamesh's magic would be an interesting combination. Naruto could use his Rasengan, a powerful chakra - based attack, while Fem Gilgamesh could enhance it with her magic, making it even more destructive. Or she could use her magic to create barriers to protect Naruto while he charges up for a big attack.
I really like 'Gilgamesh and Saber: An Alternate Path'. It takes a different route from the original story. Here, Gilgamesh realizes Saber's worth much earlier and tries to court her in his own haughty way. It's an interesting take on their relationship and how it could have developed.
The idea of destiny also plays a big role. In both Naruto and Fate Stay Night, destiny is a significant concept. In the fanfictions, it could be about whether Naruto characters can change the pre - determined fate in the Fate Stay Night world, or how the Fate Stay Night characters view the idea of 'becoming Hokage' which is Naruto's big goal.
A fascinating plot aspect in such fanfiction is the idea of the Holy Grail War in the Naruto universe. Picture the ninja villages competing for the Grail. The characters from Naruto would have to form alliances and strategies similar to what happens in Fate Stay Night. Also, the concept of summoning Servants in the Naruto world. What if Naruto or Sasuke could summon a powerful Servant? How would they interact? And how would the Servant adapt to the ninja world? These are all really interesting plot elements.
Perhaps a plot where the Holy Grail War from Fate Stay Night gets disrupted by the arrival of some key players from Fate Apocrypha. This could lead to new alliances and rivalries. Like Shirou from Fate Stay Night having to team up with a character from Fate Apocrypha, say Sieg, to face a common enemy that is after the power of the Grail in both their worlds.
One of the main features is its complex and engaging storyline. It delves deep into the Fate universe, presenting a world filled with magic and heroic spirits. Gilgamesh, as a prominent character, is portrayed with his haughty yet powerful personality. The visual novel also offers multiple routes and endings, allowing players to experience different aspects of the story based on their choices.
You can try fanfiction websites like Archive of Our Own (AO3) or FanFiction.net. AO3 has a large collection of various fanfictions, and you can search for 'Naruto x Fem Gilgamesh' in the search bar. FanFiction.net also has a wide range of fan - created stories. Just be sure to read the tags and summaries to find the ones that suit your taste.
The idea of Naruto, who is often seen as a hero, interacting with a character like Fem Gilgamesh, who is often portrayed as a powerful and somewhat arrogant figure, opens up a lot of possibilities for character development. For Naruto, he could learn new ways of looking at power and leadership from her. And for Fem Gilgamesh, she might be influenced by Naruto's more selfless and kind - hearted nature. This kind of fanfiction can really dig deep into how two very different characters can grow and change through their relationship.
Perhaps in this fanfiction, Shirou discovers a hidden power within himself during the 4th War. This power might be related to his ideals of being a hero. He could use this power to try and stop the more malicious servants from causing too much destruction. For example, he might be able to counter Gilgamesh's arrogance with his newfound strength.
Well, perhaps in this crossover fanfiction, the power systems of both could merge. For example, the magical abilities of the Fate Stay Night characters could combine with the Freezing characters' abilities. Let's say Saber's Excalibur could be enhanced by the energy manipulation skills of a Freezing character. And there could be a love triangle between a Fate Stay Night male character, a Freezing female character, and another character from either universe, which adds a lot of drama to the story.