Saitama is a very powerful hero in the One Punch Man universe. He can defeat any opponent with just one punch. He has a simple appearance and a somewhat laid - back personality.
Sometimes King is paired with Saitama. King, known for his false reputation of being a super - strong gamer in the original story, could be in interesting interactions with Saitama in the fanfiction's gaming context. Maybe they compete in a gaming tournament within the fanfiction, and Saitama's effortless wins baffle King.
Genos could be an unexpected opponent. He might be forced to fight Saitama due to some mind - control or a misunderstanding in the rules of the tournament. It would be really interesting to see how Saitama would handle fighting his own disciple, and how Genos would fare against his master's incredible strength.
The main character in One Punch Superman was Saitama. If you like One-Punch Superman, I recommend you to watch "From One-Punch to 50/50." The main character, Bai Yu, is bound to a long-cherished wish system. She enters various anime worlds to complete missions and help people fulfill their wishes. This light novel is very interesting, don't miss it! I hope you like this fairy's recommendation. Muah ~😗
He could interact with Tsukune, the main human character in the Yokai Academy setting. They might share their experiences of being different in their respective worlds.
Obviously, Harry Potter and Saitama are the main characters. Harry is the well - known wizard from the Harry Potter series, and Saitama is the super - strong hero from One Punch Man. Their interactions would be the central focus of this fanfiction.
Saitama would win. He has shown incredible strength with just one punch. His power seems limitless, and in a fanfiction scenario, his simplicity and raw power would likely overpower Jiren's more complex abilities.