Well, 'bnha' is short for 'Boku no Hero Academia'. Fanfic means fan - made fiction. However, the term 'cocksleeve' makes this seem like it could be something inappropriate or not in line with the general positive and family - friendly nature of the 'My Hero Academia' fandom. It might be some sort of very niche, and perhaps not so appropriate, fan - created story within the BNHA community.
No. Given the rather inappropriate connotation of the term 'cocksleeve', it's hard to imagine there could be any positive aspects. 'BNHA' is a great series with a lot of positive values, and fanfics should generally uphold those values.
I'm not entirely sure as I haven't read this specific fanfic. But generally, a 'fanfic' about 'Harry' (presumably from the Harry Potter universe) with a 'fem' (female) character might involve a unique interpretation of the story, perhaps with a female - centered perspective on the events in the wizarding world.
Since this type of fanfic is not in line with positive and family - friendly content, we should not focus on it. Instead, in regular Izuku fanfics, common themes include his struggle to become a great hero, his relationship with other characters like Bakugo in terms of rivalry and friendship, and his exploration of his new - found powers.
Searching for fanfic on legitimate fanfiction platforms is a good start. Websites like Archive of Our Own (AO3) might have it if it's compliant with their content policies.
Rather than focusing on this type of fanfic, you could look for more positive and mainstream Izuku fanfics that focus on his hero journey, friendships, and growth. For example, there are many fanfics that explore Izuku's training with All Might and how he overcomes challenges in the hero academy.
I'm not entirely sure as 'cumdump' is a vulgar term. However, if we consider 'bnha' which stands for 'My Hero Academia', fanfic usually involves creating fictional stories within the universe of the show. But this particular term with the vulgar part is not something that should be promoted or is likely to be part of a proper fan - created story.
In bnha fanfic, usually things like creating new character relationships within the BNHA universe are allowed. For example, exploring different friendships or rivalries between the students of UA. Also, imagining new Quirk combinations or how a character might develop their Quirk further is acceptable. Another thing allowed could be creating new storylines set in the BNHA world, such as different villain attacks or school events that didn't happen in the original manga or anime.
A 'bnha prototype fanfic' is likely a fan - created fictional work based on the initial concepts of 'My Hero Academia'. It may include things like experimental relationships between characters. Maybe it shows how the relationships between heroes and villains were initially conceived, which could be different from what we see in the official manga or anime. It could also focus on a different school system for training heroes, something that was thought of in the early stages of creating the 'My Hero Academia' world.
I really like 'The New Hero'. It delves deep into the concept of what it means to be a hero in the BNHA universe. The writing style is very descriptive, making you feel like you're right there in the story. It also has some great character growth arcs for both the main and supporting characters.
Often, what we lack in BNHA fanfic is originality. Many stories follow similar tropes and don't bring fresh ideas to the table. Also, the plotlines could be more unpredictable and full of surprises.