Bakugo could be an interesting vampire. His hot - tempered nature combined with vampiric powers would make him extremely formidable. He might struggle with the bloodlust, which could add a new layer to his character development.
Well, the plot could start with Todoroki suddenly realizing he has vampiric traits. Maybe he wakes up one day with a craving for blood. He tries to keep it a secret from everyone at the academy, but his performance in hero training starts to be affected. He becomes weaker in the daylight and stronger at night.
Bakugo could also make an interesting main character. His explosive personality combined with a gamer ability would be really cool. He could be super competitive in the 'gamer' aspects of the story, like ranking up in a hero - ranking system that works like a game. And he would be all about proving he's the best, not just in real - life heroics but also in the game - like challenges.
It could be a new student at U.A. High School. A cyborg with a unique quirk related to their mechanical parts, like the ability to fly using jet - propelled limbs. This character could be the main focus as they learn to control their powers and make friends among their classmates.
I think All Might in his prime could be a great main character for this type of fanfiction. If he were to travel to different dimensions, he could spread his symbol of peace in new worlds. He would face different types of villains and heroes, and his experience and power would make for an exciting story. Plus, we could see how he adapts his hero style to different situations in various dimensions.
Another concept is that Todoroki was turned into a vampire by a villain's quirk gone wrong. He then has to find a way to reverse it. He teams up with Midoriya, who is determined to help his friend. They search for a mysterious old hero who might know a cure, all while Todoroki battles his inner vampire nature.
It could be a new student at U.A. High School. This student, with the 'Heroic Timing' quirk, is trying to fit in among the more well - known and powerful quirks. They might face some initial ridicule or underestimation from their classmates, but as they start to show the true value of their quirk during training exercises and real - life hero situations, they gain respect.
It could be Deku. Since he is the main protagonist in the original My Hero Academia series, it would make sense for him to be the main character in this fanfiction as well. He could be the one who discovers the 'Flames of Hope' power and has to learn how to control it while still using his One For All ability.
Izuku Midoriya could be a great main character in a magic - infused fanfiction. Imagine if he discovers he has an innate magical ability on top of his One For All quirk. He could use magic to further enhance his physical abilities or develop new techniques. His determination and growth throughout the story would be even more exciting with the addition of magic.
It could be Deku. Since he is the main character in the original series, it would be interesting to see how he adapts to the new management system. Maybe he could be at the forefront of advocating for changes that benefit all students.
There's no way to know for sure without reading the fanfiction. However, it could potentially be a side character that the author has decided to make the focus. For example, a character who has always been in the background but suddenly their disappearing act becomes the central mystery. It could also be a hero who has been mentioned briefly in the original series but is now given a whole new story arc in this fanfiction where their disappearance is the key plot point.