You could also have an OC who is a journalist interested in Ip Man's teachings and martial arts. The OC could document Ip Man's life and the training in the dojo, while also getting involved in some of the challenges that Ip Man and his students face, like dealing with rival martial arts schools. This would provide a different perspective on the Ip Man story.
One idea could be creating an OC (Original Character) who is a young martial artist from a different part of the world coming to Ip Man's school to learn. This OC could bring in new fighting styles and cultural elements, leading to interesting exchanges with Ip Man and his students.
One idea could be an OC who is a scientist working alongside Hank Pym. They could be developing a new type of Pym Particle with unique properties. For example, instead of just shrinking and growing, it can also change the density of objects. This OC could face challenges like dealing with rival scientists who want to steal their research.
One idea could be creating an OC who is a devil hunter from a different country with unique fighting techniques. For example, an OC from a martial - arts - rich nation like Thailand, who uses Muay Thai moves along with devil - powered weapons. Another idea is an OC that is half - devil and half - human, struggling with their identity and trying to find their place in the world of Chainsaw Man. They could have powers that are a blend of both devil and human capabilities, making their story full of internal conflict.
An interesting OC for an Ultimate Spider - Man fanfiction could be a mutant who has spider - like abilities but also some other powers that set them apart. For instance, they might have the ability to communicate with spiders on a telepathic level. This OC could start out as an outcast in society, just like Peter Parker, but their powers are a bit more extreme and they have to learn how to control them. They could initially be seen as a threat by Spider - Man but then they team up to fight a greater evil.
An OC who is a master of disguise could be a great plot. They keep changing their appearance during the show, confusing the other players and creating really interesting and comical situations.
One idea could be a crossover between Spider - Man and an original character (OC) who has the power to manipulate time. The OC could accidentally disrupt the timeline in Spider - Man's world, leading to all sorts of chaos like villains getting released early or important events not happening as they should. This would force Spider - Man to team up with the OC to fix the timeline.
One idea could be that the OC is reincarnated as a relative of Peter Parker. This would create an interesting dynamic as they would have an in - built connection to the main Spider - Man character. They could inherit some of Spider - Man's powers in a different way, perhaps through a scientific experiment gone wrong that was related to Peter's own origin.
One idea could be an OC who is a new student at Peter's school and has a hidden power related to technology. They end up helping Spider - Man with a villain who is hacking into all the city's tech systems.
One idea could be that the OC has a special power that can either enhance or counteract Venom's abilities. For example, the OC might be able to emit a frequency that calms Venom when he's in a rage. Another plot could involve the OC being from a different dimension and getting stuck in Spider - Man's world, and Venom takes an immediate interest in this strange new being. They could start as enemies but gradually form an alliance as they face common threats.
A possible plot is that the OC is a former enemy of Fubuki who has seen the error of their ways. They try to make amends by helping Fubuki in her quest to become stronger and more respected in the hero community. This could involve training sessions where the OC shares some unorthodox fighting techniques that complement Fubuki's psychic powers. The OC could also have connections to some powerful and mysterious figures in the One Punch Man universe, which could open up new storylines for Fubuki.
One idea could be an OC who is a Noah with a unique power that allows them to manipulate time on a small scale. This could lead to interesting interactions with the main characters as they try to figure out the OC's motives and abilities.