Well, if Fubuki and Tatsumaki were Deku's sisters in this fanfic, it would completely reshape the My Hero Academia world. Deku's character arc might be influenced by his sisters' powers and personalities. Fubuki, being from One Punch Man universe, could bring in her esper abilities and her leadership skills from the Blizzard Group. Tatsumaki, with her extremely powerful psychic powers, could act as a sort of protector for Deku. Their presence might also change Deku's relationships with other characters. For example, Bakugo might view Deku differently if he had such powerful sisters. It could also lead to new storylines involving the different universes colliding, like how the rules of the My Hero Academia world would interact with the One Punch Man world elements brought in by Fubuki and Tatsumaki.
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.
The dynamic would be really interesting. Deku is known for his kind - hearted and determined nature. Fubuki, being a confident and somewhat prideful character, might initially see Deku as a bit of a weakling but would gradually come to respect his growth. Tatsumaki, who is very powerful and has a bit of a short temper, might be overprotective of Deku at times and get frustrated when he puts himself in danger. Deku, in turn, would look up to his sisters and try to learn from them. He might also try to mediate between Tatsumaki and others when her temper flares up.
One interesting Naruto and Tatsumaki fanfiction could be 'The Unlikely Alliance'. In this story, Naruto's positive energy and Tatsumaki's strong will collide in a world where their universes are somehow merged. Naruto tries to understand Tatsumaki's often prickly nature while Tatsumaki is initially dismissive of Naruto but slowly comes to respect his abilities.
The themes usually include power dynamics. Since Saitama is so overpowered, fanfics often explore how Tatsumaki, who is used to being one of the strongest, reacts to someone like him. Also, friendship or comradeship is a theme. Despite their differences, they might find common ground and work together. There can also be a theme of self - discovery, as they might learn something about themselves through their interactions.
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.
First, you need to create a well - developed OC (Original Character). Think about their personality, backstory, and what makes them unique. For example, if your OC is a hero, consider their powers and how they might interact with Tatsumaki's abilities. Then, plan the plot. It could be a love story, a friendship - turned - rivalry, or a team - up adventure. Make sure to keep Tatsumaki's character traits in mind, like her pride and powerful psychic abilities.
Friendship or a sort of reluctant alliance is another theme. Given their different personalities, seeing them come together and form a bond, whether it's a full - fledged friendship or just a temporary partnership against a common enemy, is a popular plot point. It can be really interesting to read about how they gradually get to know and trust each other.
There could be. The world of fanfiction is vast and diverse. Given the popularity of Saitama and Tatsumaki as characters, it's not unreasonable to assume that some fans have written stories about them getting married. You might need to dig a bit through different fanfic categories and tags to find such works. For example, on some platforms, you can search by character names and relationship tags to narrow down your search.
A good Saitama Tatsumaki fanfiction often has well - developed characters. It should stay true to the original personalities of Saitama and Tatsumaki from the One Punch Man series. For example, Saitama's nonchalant attitude towards most things and Tatsumaki's prideful and powerful nature. The plot also matters. It could be an interesting new adventure that involves both of them, or a different take on their relationship, like a budding romance that still respects their individual quirks.