Gabriel could be an original character created by the fanfiction writer. Maybe he's a powerful and reclusive wizard who lives on the outskirts of the wizarding world.
Gabriel Fernandez was a young boy who was a victim of severe abuse. His case became well - known because of the system's failure to protect him, and his teacher was one of the people involved in the discovery of the situation he was in.
In this fanfiction, Gabriel could be an original character created by the author. He might be a powerful wizard with a mysterious past. Maybe he was once a great hero or a feared dark wizard, and his connection to Harry is what makes the story so interesting.
The city's diverse population has also had an impact. With different ethnic groups, cultures, and social classes coexisting, it gives writers a lot of material. In Chicago fictions, we can see stories about immigrants trying to make a living, or about the clashes and reconciliations between different groups. The city's rich history of labor movements, for example, has also inspired many fictional works that deal with the struggles of the working class.
She could be an ordinary human who somehow gets caught up in the world of Greek mythology. For instance, she could be a student who is researching ancient Greek history and accidentally stumbles upon a portal to the demigod world. From there, she has to adapt quickly and becomes an important part of the story, perhaps even helping Percy in ways he didn't expect.
It's hard to say for sure. Ana could be a blend of real experiences and creative imagination. Maybe it takes inspiration from real-life situations but is not a complete account of actual events.
In 'Ava and Gabriel a love story', it could be that Ava and Gabriel are from different worlds. Ava might be a free - spirited artist while Gabriel is a more reserved academic. But one day, they are brought together by a common friend at a party. At first, they don't seem to have much in common. However, as they start to have conversations, they find that they are both passionate about a certain cause, like environmental protection. This shared passion becomes the foundation for their relationship and soon enough, love blossoms between them.
You can try looking on popular fanfic websites such as Archive of Our Own (AO3). It has a large collection of fanfictions, and there's a good chance you'll find a Gabriel x Vinette fanfic there. Just use the search bar and type in the relevant tags like 'Gabriel Dropout', 'Gabriel x Vinette' and see what pops up.
A crossover could involve a character from Chicago Fire having a personal connection to a case the Chicago PD is working on. Maybe a firefighter's family member is wrongly accused of a crime. The firefighter then teams up with the PD detectives to clear their family member's name. This would bring in elements of loyalty, family, and the different skills of both groups. They could share information and resources to solve the mystery.