The 'michael afton x ennard fanfiction' can vary greatly in its tone and theme. Some might focus on the psychological aspects of their relationship. How does Michael, who has his own backstory and traumas, deal with Ennard? And Ennard, being an amalgamation of animatronics, what does it seek from Michael? It could also be a story of redemption or a dark exploration of power dynamics within their relationship.
The setting also plays a huge role in such fanfiction. If it's set in the same universe as the original source material, there could be elements of horror and mystery that seep into their relationship. For example, they might be trying to solve a mystery together while also dealing with their growing feelings for each other. This can add an extra layer of tension and excitement to the story.
Another theme is identity. Ennard is a combination of different animatronics, and Michael has his own identity issues, especially considering his family's history in the FNAF world. Fanfictions might explore how their relationship affects or challenges their sense of self.
The potential for unique storylines. It could be a story of redemption, where they help each other overcome their flaws. Or it could be a story of discovery, as they find new things about themselves and each other. The fanfiction allows for creative interpretations of their relationship.