One of the things I hate in fanfiction is when the author changes the personality of a beloved character for no good reason. It can be really jarring. And the over - use of angst for the sake of it. Not every story needs to be super dark and depressing all the time. Also, when the dialogue is stilted and unnatural, it takes away from the overall enjoyment of the fanfiction. Fanfiction should flow well, like a conversation between friends, but when the dialogue is off, it's a big turn - off.
It could be about the relationship between the protagonist and their senpai. Maybe it involves the daily interactions, the growth of their bond, and some emotional experiences like friendship or a budding romance.
The main characters are probably the protagonist and their senpai. There might also be some supporting characters like the protagonist's friends or classmates.
It's about a story where the senpai is a bunny girl. Usually, it might involve some kind of unique relationship, perhaps a romantic or a very special friendship. It could also include elements of school life and the reactions of others to this bunny - girl - like senpai.
Well, in some cases, the quality of fanfiction varies greatly. There might be a lot of poorly written fanfictions out there that use the Harry Potter name just for popularity. These might have bad grammar, inconsistent characterizations, and illogical plots, which can make the whole idea of fanfiction based on Harry Potter seem annoying.
The main character is likely the senpai who is a bunny girl. And there must be a protagonist who has a relationship with her, could be a fellow student or someone close to her in the story's setting.
Another option is to look for specialized anime and manga stores. These stores often have a collection of light novels as well. You can call ahead to see if they have the Bunny Girl Senpai light novel in stock.
The large and detailed cast of characters. There are so many characters in Harry Potter with their own personalities, backstories, and relationships. Fanfiction writers may struggle to keep all these elements in mind and might find it annoying when trying to incorporate them into their own stories without making mistakes or contradictions.