For an 'accidental hero fanfic', think about a situation where a character doesn't mean to be heroic but circumstances make them so. A gardener could be watering plants when he discovers a strange object buried in the soil. It turns out to be an ancient artifact with magical powers that he unwittingly uses to save his town from a natural disaster. Or perhaps a taxi driver who picks up a passenger who is actually a wanted criminal on the run. The driver unknowingly takes a wrong turn that leads to the criminal being caught by the police. Another idea is a waitress in a diner who overhears a conversation between two villains planning a bank robbery. She accidentally spills coffee on them, causing a commotion that alerts the authorities and thwarts the robbery.
One idea could be to give the hero a unique power that is not typically seen in the original story, like the ability to communicate with animals. This would add a new dynamic to the character and open up different storylines, such as using the animals to gather information or help in battles.
One idea could be to explore the backstory of a minor character. For example, what was the life of a random student in Class 1 - B like before coming to U.A. High? Another could be a 'what if' scenario, like what if Izuku Midoriya didn't get One For All. Maybe he'd develop his own unique quirk through sheer determination and hard work. Or a fanfic could focus on the villains' side, showing how they came to be and their motives in more depth.
One idea could be that the villain is secretly in love with the hero and tries to protect them from a greater threat without the hero knowing. Another could be a situation where the hero gets injured and the villain has to take care of them, leading to a change in their relationship. Or perhaps the villain and hero are forced to team up due to a common enemy and during that time, a romantic tension builds between them.
Well, a cool plot for 'Big Hero 6 The Series Fanfic' could be that the team discovers a hidden underground world beneath San Fransokyo. This world is filled with advanced technology that was lost long ago. They have to navigate through this world while also facing off against strange creatures that guard the technology. Or perhaps the fanfic could focus on the personal relationships within the team. For example, GoGo and Wasabi could have a falling - out over a difference in opinion on how to handle a mission, and the rest of the team has to work hard to get them to reconcile.
Perhaps Percy could be transported back in time to the era of the ancient heroes. There, he meets the heroes he has always idolized and has to team up with them to face a common enemy. This would allow for some great character interactions and development.
One idea could be a crossover with another popular superhero universe. For example, characters from 'Boku no Hero' could meet and team up with characters from the Marvel Universe. They could face a common enemy that requires both sets of powers to defeat. Another plot could involve a time - travel crossover, where a character from 'Boku no Hero' is sent to a different time period in another fictional world and has to adapt and find a way back. Or perhaps a crossover where the 'Boku no Hero' characters are transported to a post - apocalyptic world and must use their quirks to survive and help the locals.
A plot could involve a cross - over mission. The main characters from both 'Accidental Tourist' and Warehouse 10 have to work together to retrieve a powerful and dangerous item. They initially clash due to their different methods and personalities, but as they face various challenges during the mission, they learn to understand and respect each other. For example, the laid - back attitude of the 'Accidental Tourist' character might contrast with the more regimented approach in Warehouse 10, but they find a middle ground.
A plot could be where Tadashi comes back as a hologram and helps Hiro solve a new mystery in San Fransokyo. This would be interesting as it would combine their strong bond with a new adventure.
A crossover with 'Overlord' could be really exciting. The Shield Hero could come across the powerful beings from Nazarick. There could be a conflict at first due to misunderstandings, but then they realize they can work together. The Shield Hero could use his strategic skills along with the power of the Overlord's minions to face a common enemy that is a threat to both their existences.
One idea could be the Shield Hero crossing over with a popular fantasy world like Middle - earth. He could face off against orcs and trolls using his unique shield abilities. Another could be a crossover with a modern superhero universe, where he has to adapt his medieval - style combat to a high - tech city environment. Maybe he teams up with a speedster superhero to take on a powerful villain who can teleport.