One popular theme is the power - up theme. Fans like to write about how the characters from both series can gain new powers or enhance their existing ones. For example, the Shield Hero getting some of Saitama's physical strength or Saitama getting a new type of shield - like ability.
Another theme is the exploration of different worlds. Fanfiction writers often send the characters from one series into the world of the other. So, you might have Saitama in the world of 'Rising of the Shield Hero', dealing with the discrimination that the Shield Hero faces. Or the Shield Hero in the world of 'One Punch Man', trying to understand the rather simplistic yet effective hero system there. These themes allow for a lot of creativity and interesting character development.
I've read a fanfiction where the Shield Hero's abilities are combined with Saitama's training methods. It was a really unique take. Another great one had them team up to fight a common enemy that was a mash - up of the villains from both universes. It was really exciting to see how the different power systems worked together. Just search for tags related to both shows on the fanfiction platforms.
Filo is another great character. Her cute and energetic personality, along with her unique abilities as a Filolial Queen, can add a lot of fun elements to a fanfiction. You could write about her adventures, her interactions with other characters, and how she helps Naofumi in unexpected ways.
One popular theme is power - level comparison. Fans like to see how the powerful characters from Naruto, like Naruto and Sasuke, would stack up against Saitama from One Punch Man. It's interesting to explore the limits of their powers in a crossover scenario.
A prevalent theme is the power dynamics within the harem. Since the Shield Hero has his own abilities and the harem members also have their powers, how they interact and support each other in terms of power is often explored. Also, the theme of loyalty and trust within the harem is common, as the characters need to rely on each other in the face of various challenges in the story.
One common theme is the clash of different power systems. For example, when the Shield Hero crosses over with a world like 'One Piece', his shield - based powers contrast with the Devil Fruits and Haki in 'One Piece'. Another theme is the adaptation of the Shield Hero to new environments. In crossovers with 'Naruto', he has to understand the world of ninjas and chakra while still relying on his shield skills.
Common themes in such fanfictions may include intense emotional and physical relationships among the characters. It might focus on the chemistry between the Shield Hero and other characters like Filo or Melty. But these types of fanfictions are not always in line with the overall tone of the original anime or light novel. They tend to deviate into more mature content which may not be suitable for all audiences.
Often, original characters who are strong but also have a complex backstory are popular. For example, a character who was once a villain but turned to the side of the heroes for a very personal reason. Their struggle between their past and their new identity as a hero can be really engaging.
Yes, it's quite popular. Many readers enjoy its unique plot and characters.
One of the main themes is the idea of being wrongly accused and having to overcome prejudice. The Shield Hero is initially framed and has to fight against the negative perception of him. Another theme is growth and redemption, as he gradually builds his strength and reputation.
One main theme is perseverance. The Shield Hero faces numerous challenges and prejudices but keeps going. Another is redemption, as some characters have to atone for their wrongdoings. And there's also the theme of friendship, as the Shield Hero gradually forms bonds with his comrades.