The character interactions. When you put the characters from One Punch Man and Mass Effect together, there are so many possibilities. You could have Garrus trying to figure out how Saitama's power works, or Tali being completely in awe of his strength. These interactions can lead to both comical and heartwarming moments in fanfiction, as characters from two very different worlds learn to work together or just react to each other's presence in hilarious ways.
The novelty. It mixes two different concepts - the science - fiction world of Mass Effect and magic which is often associated with fantasy. This blend creates a unique setting that fans find really interesting.
The character of Rover has a lot of potential for interesting stories. His design and the little we know about him in the original work leave room for fanfic writers to be creative. They can expand on his powers, his relationships with other characters, and his place in the One Punch Man world.
The appeal lies in the combination of two very different universes. One Punch Man has a modern, comical take on superheroes with Saitama's extreme power, while Bleach is a more complex world of souls, Shinigami, and Hollows. When combined in fanfiction, it creates unique scenarios. For example, seeing how Saitama would react to the strict hierarchy of the Soul Society or how Ichigo would deal with the rather simple - minded villains in One Punch Man.
The contrast in settings. Fallout has a post - apocalyptic, Earth - based setting, while Mass Effect is all about space exploration and alien species. When combined, it creates a really interesting mix of familiar and alien elements.
The mystery of the Protheans. Since they are an ancient race in the Mass Effect universe, creating an OC allows for a lot of speculation. We can explore their advanced technology, culture, and what they might have been like before they were wiped out. It's exciting to see how an OC can fit into the existing lore.
In some fanfictions, they might create a crossover where the villains from One Punch Man and Mass Effect team up. Imagine Boros and the Reapers working together. This would force the heroes from both universes to join forces. The fanfic could focus on how the different fighting styles and powers of the One Punch Man and Mass Effect characters interact when they fight together against this new super - enemy alliance.
The allure of Mass Effect human time travel fanfiction lies in the combination of two exciting concepts. Time travel allows for exploring different eras in the already rich Mass Effect universe. And having a human as the time - traveler gives a relatable perspective. We can see how a human might react to the alien cultures and technologies in different time periods within the Mass Effect world.
The combination of two very different universes. Harry Potter has magic and a whole different set of rules and characters, while Mass Effect has its own unique sci - fi elements like the Citadel, the different alien races, and the technology. When you put a god - like Harry into this mix, it creates a lot of interesting scenarios.
In fanfiction, Tali and Shepard's relationship is appealing because of the contrast between their backgrounds. Tali is a Quarian, with a unique culture and way of life, while Shepard is a human. This cultural difference creates interesting scenarios and opportunities for character growth. For example, they can learn from each other's values and beliefs.
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.