One characteristic is the exploration of their contrasting personalities. Akashi is often portrayed as strong, confident and a natural leader, while Kuroko is more introverted and underestimated. Fanfics usually play with how these two personalities interact and complement each other.
One great Akashi x Kuroko fanfiction is 'The Red and the Blue'. It beautifully delves into their relationship, showing how Akashi's dominant personality and Kuroko's calm nature complement each other. The author does an excellent job of portraying their emotions in a Yaoi context.
One common theme is the exploration of their complex relationship. Given their different personalities and playing styles on the court, fanfictions often delve into how they understand and support each other off the court. For example, how Akashi's strict and calculating nature might be softened by Kuroko's quiet and observant presence.
One plot idea could be that Kuroko and Akashi have to team up for an unexpected street basketball tournament against a group of international players. They start off with a lot of friction due to their past rivalry but gradually learn to work together and discover new aspects of each other's playing styles.
One challenge is that they have very different personalities. Kuroko is quiet and unassuming, while Akashi is more dominant and confident. So, it's hard to find a believable way for them to connect at first.
Another one is 'In the Eyes of Akashi'. This fanfic focuses on Akashi's perspective of Kuroko. It shows his admiration and the special place Kuroko holds in his heart. The author does a great job of exploring Akashi's complex character in relation to Kuroko.
In these fanfictions, the way their relationship develops is often quite different from the original plot. It allows for more exploration of their emotional sides. The Yaoi genre gives the freedom to show a deeper, more intimate connection between Akashi and Kuroko. Writers can play with their unspoken feelings in the series and expand on them in a romantic and sometimes steamy way, but always in a way that respects the essence of the characters.
You can try fanfiction websites like Archive of Our Own (AO3). There are a lot of talented writers who post their Akashi x Kuroko fanfictions there. Just use the search function and type in the relevant tags, and you'll be presented with a variety of stories to choose from.
One aspect to consider in an Akashi Seijuro x OC fanfic is the character development. Akashi is a complex character in the original work, and when paired with an original character (OC), the writer has the opportunity to explore new sides of him. The relationship between Akashi and the OC can be built in various ways, such as starting from a rivalry and evolving into a deep emotional connection. For example, the OC could be a new player on his team who challenges his leadership at first but then earns his respect. Another important part is the setting. If it's set in the world of the original anime, it can add authenticity. Writers can also introduce new elements to the story, like a special tournament or a unique training method that affects their relationship.
A possible plot for a Female Kuroko x Akashi fanfiction could be set in an alternate universe where there are no gender - based restrictions in basketball teams. Female Kuroko joins Rakuzan instead of Seirin. Akashi, as the captain, is initially skeptical but soon realizes her potential. They start training together intensively. As they do so, they begin to develop feelings for each other. However, they face opposition from some of the team members who are not used to the idea of their captain being involved with a female teammate. But through their strong bond and love for basketball, they overcome these obstacles and their relationship blossoms.