Another aspect could be a story where Nana Shimura somehow survives and has to face the new world of heroes. How would she react to the current state of hero society? She might be shocked by the commercialization of heroism and try to bring back the purer form of being a hero that she knew.
A simple fanfiction could be about a young hero in training who discovers Nana Shimura's old diary. Through reading it, they learn about her values and ideals, and are inspired to become a better hero themselves.
One great aspect of My Hero Academia multiverse fanfiction is the chance to explore different versions of our favorite characters. For example, we could see a version of Deku who never got One For All but still became a hero through sheer determination and his own unique quirk. It's exciting to think about how different the story could be in these alternate universes.
One possible fanfiction could be about Momo and Todoroki teaming up for a special mission. They use their unique quirks in unison to defeat a powerful villain. Momo creates useful items and Todoroki controls the temperature to their advantage.
One great 'nana shimura fanfiction' could be 'Nana Shimura: The Early Years'. It delves into her backstory and how she developed her values.
The fanfiction could involve power - sharing or power - swapping scenarios. Imagine if All Might had the power of Green Lantern for a while. How would he use it? Or if Wonder Woman had One For All. This would not only create interesting battle scenes but also explore the characters' personalities in new ways. Also, the different power levels in the two universes could be equalized in creative ways. For instance, the lower - powered characters in My Hero Academia could find ways to hold their own against the super - powerful Justice League members through strategy and teamwork.
A common theme is her relationship with her students or proteges. Since she was an important figure in the 'Boku no Hero' world, many fanfics explore how she influenced the younger heroes.
You could write a fanfiction where Tenko Shimura is transported to an alternate universe where heroes and villains have different roles. In this universe, he might be forced to team up with heroes to survive. This would give a chance to explore his character in a new light, as he has to adapt to new rules and relationships while still dealing with his own inner demons.
Batman in the My Hero Academia world would likely be a bit of an outsider at first. His dark and brooding nature might contrast with the more colorful and often optimistic characters in MHA. However, his intelligence would be highly respected. He could use his detective skills to help solve some of the mysteries that pop up in the MHA world, like the origin of certain quirks or the identity of villains who are hiding in plain sight. And his martial arts expertise would make him a formidable opponent in battles against villains.
You can start by looking on fanfiction websites like Archive of Our Own. They usually have a wide range of fanfictions, including ones about Nana Shimura.
She could develop better control over her quirk. Currently, she can change the size of objects, but she might learn to change the size of multiple objects at once or change the size of objects in a more precise manner.