Another common theme is her relationships with other characters. This could be her mentorship - like relationship with Shirou, or her interactions with other Servants. Writers often delve into the dynamics between them, like the mutual respect or the conflicts that might arise.
Love is a very common theme. Their relationship, which was complex in the original work, is often explored more deeply in fanfiction, showing different aspects of their love for each other.
One common theme is self - discovery. The SI OC often has to figure out their place in the Fate Stay Night world, especially in relation to Saber. Another theme is the power of friendship or love. Their relationship can be a source of strength for both characters.
One unique feature is the combination of different universes. For example, when Saber is crossed over with a modern - day setting, it creates a contrast between her medieval values and the contemporary world. This leads to interesting character development as she has to adapt.
One common theme is friendship. Despite their different origins and personalities, Rin and Saber often develop a deep friendship in these fanfics. They learn to rely on each other and support one another through difficult times.
One popular theme is the power progression of the gamer protagonist within the Fate Stay Night universe. They often start as a relatively weak character and gradually become stronger through strategic use of the system. Another theme is the exploration of different Servant relationships. Since the fanfiction combines the system gamer element, the protagonist might form unique bonds with Servants that are different from the original story, like using game - like quests to deepen their connection.
One of the most popular themes is the exploration of different character relationships. For example, the relationship between Shirou and Saber is often delved into more deeply in fanfiction, showing different possible scenarios and emotions. Another common theme is alternate universes, where the story takes place in a different setting or with different rules, which can bring a whole new perspective to the Fate Stay Night world.
There are several reasons. First, the original Fate Stay Night story leaves a lot of room for interpretation when it comes to Saber and Shirou's relationship. Fanfic writers can fill in those gaps. Second, the pairing has a certain charm. Saber is a powerful and noble character, and Shirou is a hero in his own right. Their different personalities and the way they complement each other make for great story - telling. Moreover, the fan community for Fate Stay Night is large and passionate, and they enjoy creating and reading fanfics about this particular pairing.
The main reason is their complex relationship in the original story. Fans love to explore more about it in fanfictions. Their connection, which is a mix of loyalty, admiration and a hint of romance, is very appealing.
There's 'Shirou and Saber's Eternal Bond'. This fanfic focuses on the magical aspects of their relationship. It has some really interesting plot twists where they have to use their combined powers to face new threats, all while their feelings for each other are a central part of the story.
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.