A very common theme is growth. Izuku is constantly growing as a hero - in - training, and Fuyumi can grow in terms of her confidence and independence. Their relationship can be a catalyst for this growth. Additionally, there's often the theme of finding a place in the world. Izuku is finding his place as a hero, and Fuyumi might be finding her place outside of her family's shadow through their connection.
One common theme is friendship. They often start as friends and then their relationship may grow deeper. Another theme is support. Izuku might support Fuyumi in her personal struggles, like dealing with her family's expectations. And Fuyumi could support Izuku in his hero journey.
Well, self - discovery is also a common theme. As they interact, both Izuku and Fuyumi learn more about themselves. In some fanfics, they might realize new aspects of their personalities or their dreams. Also, family plays a role. Fuyumi's family situation can be a backdrop against which their relationship develops, and Izuku's lack of a father figure might also be relevant in how they bond.
One popular izuku and fuyumi fanfiction is 'A New Bond'. It explores their relationship in a unique way, with Izuku helping Fuyumi deal with family issues while also growing closer. Another is 'Shared Dreams' where they discover they have common goals and support each other in achieving them.
One common theme is family dynamics. Since Fuyumi is part of the Todoroki family, a lot of fanfictions explore her relationship with her father, Enji, and her siblings like Shoto. Another theme is her role in the U.A. High School environment, whether she's a student or has some other connection to the school. Love and romance are also common, perhaps her having a relationship with another character from the series.
I'm not very familiar with this specific type of fanfic, but generally in fanfic, common themes could include adventure, friendship, and the development of the relationship between the two characters.
Overcoming obstacles is a frequent theme as well. There could be external factors like villains trying to disrupt their relationship, or internal issues such as Hawks' fear of commitment due to his hero duties. Through these challenges, their relationship either grows stronger or faces setbacks, which makes for an interesting read.
One common theme is the crossover of two different universes. Since Izuku is from My Hero Academia and RWBY has its own unique world, exploring how they interact and collide is a big theme. Another is power growth. Izuku usually has his own set of powers and abilities, and in the RWBY world, he either adapts or combines his powers with the RWBY characters' abilities. Friendship is also a common theme. As Izuku meets the RWBY characters, they form bonds and go through adventures together, just like in their respective original stories.
A major theme is the struggle against overwhelming expectations. Izuku has high expectations from himself and others in the world of the story. When he fails to meet them, it leads to his depression. Also, the theme of lost hope is common. He might lose faith in his dreams and his ability to become a hero. In some fanfictions, his depression is also linked to past traumas, like being bullied for not having a quirk initially.
One common theme is the struggle with identity. Izuku has to come to terms with being a vampire in a world where he was previously a normal human. Another theme is isolation, as he may feel different from his friends and classmates. And often there's a theme of power, exploring how his vampiric powers change his role in the hero - related events.
One common theme is Izuku's growth and development. Since he's older, he might have more advanced skills and a deeper understanding of his quirk. Another theme could be his relationships, perhaps more complex romantic relationships or stronger friendships with his peers.
One common theme could be redemption. Izuku may be expelled unjustly, and the story could focus on his journey to prove himself and regain his place in the hero world.
Another theme is mentorship. Sometimes, female characters take on a mentorship role for Izuku. They might have different skills or knowledge that they impart to him, like unique fighting techniques or strategies.