You could also create a fanfiction that combines the world of 'boku dake ga inai machi' with another similar genre. Maybe mix it with a bit of time - travel mystery from another anime. This way, you can introduce new elements and conflicts, like how the time - travel rules from the other genre would interact with the existing plot of 'boku dake ga inai machi'.
One idea could be exploring an alternate ending where the main character makes different choices earlier on in the story. This would change the whole trajectory of the events in the 'boku dake ga inai machi' universe.
First, re - watch or re - read the original 'boku dake ga inai machi' to get a solid understanding of the characters, the setting, and the overall plot. This will help you stay true to the essence of the story.
Most likely not. Abuse in any form is an unethical and often disturbing concept. In fanfiction, it can distort the original intention of the source material and create an uncomfortable reading experience for those who come across it.
I'm not entirely sure as 'abuse' in fanfiction is a concerning topic. It could potentially be a fan - created story that involves some form of mistreatment in the context of the 'boku no dake' (which might refer to a particular series or character). However, such content often goes against positive and healthy storytelling.
One possible plot could be the protagonist's friends trying to rescue them. Maybe they follow a series of clues left behind by the kidnapper. Another could be the kidnapped person finding a way to communicate with the outside world using some unique method. For example, they might use Morse code through tapping on the walls if they are locked in a room.
It could be a jealous rival. Maybe someone who is envious of the main character's popularity or achievements in the story's world.
Another idea is a fanfiction where the quirks in Boku no Hero are somehow combined with the chakra system in Naruto. Maybe a character has a quirk that allows them to manipulate chakra in unique ways. This could lead to all sorts of new abilities and storylines.
A cool fanfiction concept could be to have a character lose their quirk and then have to find a new way to be a hero. This would show their determination and resourcefulness. Or, you could write about a new villain who has a quirk that specifically targets the heroes' weaknesses, and how the heroes would have to work together to overcome this threat.
One idea could be creating an OC with a unique quirk that has a drawback they have to constantly overcome. For example, a quirk that allows them to fly but only for a very short time before they need a long recharge. Another idea is to make an OC who is from a different country and has to adapt to the hero society in Japan. They could bring in different cultural perspectives on heroism.
Another idea is a story where Akame somehow gets the power of the Nine - Tails. This would completely change the power dynamics in her world. She could use the power in unique ways, like combining it with her Murasame sword skills. And perhaps she would have to learn to control the Nine - Tails' power, just like Naruto did.
One idea could be Batman somehow getting transported to the Boku no Hero Academia universe. He could use his detective skills and gadgets to help the heroes there. For example, he might be able to analyze the quirks in a way the local heroes haven't thought of before.