Identity exploration is also a theme. The sister might be struggling with being in Saitama's shadow or trying to find her own identity as a hero or just as an individual. She could be trying to make a name for herself without relying on her brother's fame.
One common theme is the exploration of Saitama's power in different universes. For example, when he crosses over to a universe with magic, how his physical strength compares to magical abilities.
One good fanfiction could be 'Saitama's Sister: The Hidden Power'. It explores the idea of Saitama having a sister with her own set of powers. In this story, she tries to keep up with her brother's reputation while also finding her own place in the hero world.
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.
Well, a lot of One Punch Man fanfictions about heroes seeing Saitama are really interesting. Some focus on their initial shock at his power. For example, Genos is always in awe of Saitama's strength in the original work, and in fanfictions, this can be explored even deeper, like how he tries to understand the source of that power.
The novelty. Since Saitama is originally male, a female version brings a fresh perspective. It allows for new storylines and character interactions. For example, how would a female Saitama interact with the male - dominated hero society in One Punch Man? It also gives room for exploring different power dynamics and emotional responses.
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.
The plot could involve Saitama teaching a group of new heroes how to face their fears. He would tell them about his own journey, starting as an ordinary guy who decided to become a hero just for fun. Saitama could teach them that no matter how strong the enemy is, one should not be afraid to take the first step. He might use his one - punch knockout strategy as a metaphor for facing difficulties head - on, even if it seems impossible at first.
A common theme is the clash of powers. Since Deku has his own set of powers from My Hero Academia and he's in the One Punch Man world, there's often exploration of how his powers compare to the likes of Saitama's. Another theme is adaptation. How does Deku adapt to this new and very different hero environment.
One common theme is power comparison. Since Saitama has such overwhelming power in One Punch Man, fanfictions often explore how that power stacks up against the Huntsmen and Huntresses in RWBY. Another theme is the clash of different worlds. The modern, somewhat comical world of One Punch Man and the more fantasy - based RWBY world coming together creates interesting scenarios.
The theme of adventure is also prevalent. Fangirls take their characters on adventures through the various locations in the One Punch Man world. They might explore the strange and dangerous places, face off against powerful monsters, or uncover secrets about the world that weren't known before. This allows for a lot of action and excitement in the fanfiction, and it also gives the fangirl character a chance to prove herself and grow.