Well, the plot could involve the OC being reborn with some special powers. Maybe they're reborn as an Asgardian but with a unique twist. They could then interact with the existing MCU characters like Thor or Loki, and get involved in their adventures, perhaps helping to stop a new threat to Asgard or even all of the Nine Realms.
Another possibility could be an original antagonist created specifically for the fanfiction. For example, a powerful sorcerer from a hidden dimension who sees the OC's rebirth as a disruption to the natural order of the MCU universe. This sorcerer could try to eliminate the OC and use their power for their own dark purposes. They might be able to manipulate magic in ways that even Doctor Strange hasn't seen before, making them a formidable foe.
I don't quite understand what your question is. Can you provide more background information or clarify what you want to know? This way, I can better answer your questions.
There were many novels that had transmigrated to Pokémon with a computer system. Among them, the more common ones were Pokémon: Pocket of the Other World, Pokémon: Pokémon Master, Pokémon: Pokémon, and so on. The protagonists of these novels all experienced the path of Pokémon trainers who were reborn into the Pokémon world with a computer system. They learned more Pokémon skills through the computer system's Pokémon Trainer and defeated the evil forces to become the great Pokémon Master.
Not always. While the MCU draws inspiration from the comics, there are often changes and adaptations made to fit the cinematic universe and modern audiences.
😋I recommend a novel called "I Looks Like an Evil God" to you. This is a fantasy-mystery fantasy novel. The main character, Liu Dao, met the world's number one evil god on the day he transmigrated. He also obtained a brainless system fragment and began a wonderful adventure. If you like this kind of novel where you are reborn or transmigrated into a system, you will like this novel. I hope you like this fairy's recommendation. Muah ~😗
Captain America's origin story is quite interesting. Steve Rogers was a weak but very brave and kind - hearted man. He was selected for an experiment to create a super - soldier during World War II. The experiment transformed him into the strong and patriotic Captain America. His origin is deeply rooted in the war - time context and the need for a symbol of hope.