One common theme is the contrast between Saitama's powerful yet simple - minded nature and the complex relationships in the harem. For example, in many stories, his nonchalance about his growing group of admirers is a source of humor and drama.
Sure. One popular 'Saitama Harem Fanfiction' is 'One Punch Man's Harem Adventure'. It has an interesting plot where Saitama unknowingly attracts a group of characters who form a sort of harem around him. Another is 'Saitama in the Harem World' which explores how Saitama would handle being in a world full of potential romantic interests.
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.
One way is to explore his life before he became a hero. Maybe he had a normal job and was constantly frustrated with the mundanity of it. This could have been the catalyst for his intense training.
A plot where Saitama travels to different dimensions in the One Punch Man universe. He could encounter strange versions of himself or other heroes and villains, leading to humorous and action - packed situations.
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.
A common theme is the exploration of their relationship. Given their different personalities, fanfictions often play with how they interact, whether it's in a comical way or a more serious, character - developing way.
In a Fem Saitama with hair fanfiction, she might have a different personality compared to the original male Saitama. With her hair, she could be seen as more feminine and perhaps more in touch with her emotions. This could lead to different relationships with the other characters in the One - Punch Man universe. For example, she might have a closer friendship with some of the female characters who can bond over their shared femininity.