One common theme is workplace stress. Since Aggretsuko's job is a big part of her character, many fanfics explore how she deals with her difficult boss, long hours, and annoying coworkers in more depth.
Another theme is his personal growth. Many fanfics show Anai learning from his experiences, whether it's dealing with difficult clients or understanding office politics. For example, in some fanfics, he overcomes his initial shyness and becomes more confident in expressing his ideas. This theme gives readers a sense of his character evolving over time.
Well, the uniqueness might lie in the way it combines the distinct personality of Aggretsuko with whatever the 'butt' aspect represents in the fanfic. Maybe it adds a comical or different take on the character's story.
One interesting Aggretsuko Haida fanfic could be about their adventures in a parallel universe where they have different jobs but still manage to find each other. Another might focus on a day in their life where they deal with a particularly difficult co - worker together. And there could be a fanfic that delves into their relationship from Haida's perspective, exploring his insecurities and how he overcomes them for the sake of their relationship.
Work - related stress is a very common theme. Since Aggretsuko is known for her struggles at work in the original series, many fan fictions expand on that, showing different ways she copes or overcomes her job - related problems.
One interesting Aggretsuko fanfiction could be about Aggretsuko's adventures in a new part of the city where she discovers an underground music scene full of other anthropomorphic animals with unique musical styles. This could explore her love for music in a new setting.
You can try websites like Archive of Our Own (AO3). It has a large collection of fanfics for various fandoms, including Aggretsuko. Just search for 'Aggretsuko Haida' and you'll likely find a bunch of fan - created stories.
One of the most interesting ideas is an Aggretsuko crossover with 'Fullmetal Alchemist'. Aggretsuko's experience with the corporate world could be compared to the military and alchemical world in FMA. She could interact with characters like Edward and Alphonse, and her perspective on the search for the Philosopher's Stone and the concept of equivalent exchange would add a new dimension to the story.
There's also 'Aggretsuko's New Adventure'. In this fanfic, Aggretsuko decides to take a break from her office job and goes on a journey of self - discovery. It shows her character development outside the office environment and how she interacts with new characters she meets along the way. It's really interesting to see her in a different setting.