One possible storyline could be that Shinji and Sakura Matou are from different social classes in the game's world. They meet by chance and initially have a lot of misunderstandings due to their different backgrounds. But as the story progresses, they start to understand each other and work together to overcome the social barriers in their world.
I'm not very familiar with this visual novel specifically. However, in general, a visual novel without the inappropriate H scenes can often focus more on the story, character development, and the overall world - building. It might explore the relationship between Shinji and Sakura Matou in a more platonic or story - driven way, perhaps delving into their personalities, their pasts, and how they interact within the context of the game's setting.
Another plot could involve a magical tournament that somehow brings Harry Potter and Dark Sakura Matou together. They are forced to compete against each other at first but then realize that there is a greater conspiracy behind the tournament. They then join forces, with Sakura's dark magic and Harry's quick thinking and diverse spellcasting abilities becoming a formidable combination to uncover the truth and defeat the real villains behind the scenes.
Some fanfictions might focus on an alternate universe where Naruto and Sakura Matou have different abilities or roles. For example, Sakura Matou could have a unique power related to her family's secrets, and Naruto has to help her control it while also dealing with threats from those who want to use her power for evil.
Perhaps the burned girl is a victim of a malicious act. The story could revolve around her search for justice. Along the way, she meets various characters who either help or hinder her quest. There could be a lot of emotional drama as she battles her own insecurities and the external obstacles.
They are interesting because they offer a new take on the relationship between Naruto and Sakura. It allows fans to explore different scenarios that might not have been possible in the original story.
Perhaps in the fanfic, Sakura betrays her comrades due to a misunderstanding. She might be framed by an enemy as if she has leaked important information. This leads to her being ostracized by her friends, and she has to fight to prove her innocence while dealing with the emotional turmoil of the false accusation.
In such a fanfiction, one possible storyline could be that Sakura is under some dark magic or mind control which makes her turn against Naruto. Another could be a huge misunderstanding where she believes Naruto has done something unforgivable to her or their friends.
A time - travel or alternate universe storyline could be another option. In a different reality, cross - dressing might be a normal part of the culture. Shinji and Misato find themselves in this world and have to adapt. This could lead to all sorts of interesting situations as they learn about this new culture and how it affects their relationship with each other and the people around them.
Since this is a very odd combination, it's hard to say exactly. But perhaps it would involve some sort of strange crossover where the worlds of Naruto and Fate/stay night collide, and Naruto and Sakura get involved in a situation related to the Matou family in a romantic or sexually - tinged way, though this is really stretching the boundaries of normal fanfiction concepts.
One possible storyline could be the queen's struggle to maintain her power against a rebellion. Her crown is the target of the rebels who want to break the symbol of her authority.