I don't know for sure. To figure out if Millie is a real story, we'd need to know more about the plot, the source, and any background information available.
In a fanfic, Moxxie's accent could be a central part of a romantic storyline. Suppose there's a character who is initially put off by her accent but then gradually falls in love with her as they get to know her better. Her accent becomes something endearing and special, and they have cute exchanges where he tries to imitate her accent playfully.
The main characters are Striker and Moxxie. Striker might be seen as the more dominant and aggressive one. He has his own goals and ways of doing things in Hell. Moxxie, who is associated with I.M.P., has his own set of friends and a life that gets intertwined with Striker's in the fanfic, creating a lot of interesting interactions and storylines.
Well, an 'amuto amv love story' could be about two characters who are in love. Maybe it shows their love story through different scenes from the anime. It might start with the initial attraction, like when their eyes meet for the first time. Then it could progress to them spending time together, sharing secrets, and finally realizing their deep love for each other. The AMV aspect means that these scenes are carefully selected and edited to fit the mood of the music.
First, choose an anime with a great love story. For example, 'Fruits Basket' has a beautiful love story with many emotional moments. Then, select a song that fits the mood of the love story, like a soft ballad. Next, start looking for key scenes in the anime that show the development of the relationship, such as the first meeting, the confession, and the happy times together. Use video editing software to cut and arrange these scenes according to the rhythm of the song.
The appearance of a science fiction story on AMV is unpredictable. It could be anytime based on factors like the creator's inspiration, available resources, and audience demand. So, you just have to keep an eye out for it.
It can be depicted through her dialogue. For example, using specific words or phrases that are characteristic of her accent. Like she might say 'ain't' instead of 'isn't' or use some unique local slang.
You can start by looking on popular fanfic websites like Archive of Our Own (AO3). It has a large collection of fanfics from various fandoms, and you're likely to find quite a few 'Moxxie x Striker' ones there.
One popular 'Moxxie x Striker' fanfic is 'The Unlikely Bond'. It delves into a scenario where they are forced to work together on a mission and gradually develop an understanding of each other.