One characteristic could be the exploration of their relationship, whether it's a deep friendship or a more complex dynamic. Another might be the use of the unique settings or story elements from the original source material that features these characters.
I'm not sure which specific 'ein x aaron fanfic' you might like. You could try searching on popular fanfiction websites like Archive of Our Own. They have a wide variety of fanfics, and you might be able to find some great ones there.
One common theme is friendship. Kai and Ray's relationship is often explored, showing how they rely on each other and grow together. For example, they might help each other through difficult battles or personal problems.
Friendship is a very common theme. Many fanfictions explore how their initial friendship can develop into a more profound connection over time. It could be through shared musical experiences or just spending time together off - stage.
Lemon fanfiction often contains inappropriate and non - canon content. However, in the context of Ninjago Kai x Reader, it might explore a more romantic or close relationship between Kai and the reader. But such fanfictions may deviate from the original family - friendly and action - oriented nature of the Ninjago series.
I don't think it's very popular in the mainstream Ninjago fandom. Since the Ninjago series is family - friendly, most fans are more interested in the official storylines, the battles, and the development of the ninja characters. Lemon fanfiction often contains adult - like content which goes against the general tone of the series.
The rivalry - turned - friendship is also a big part. They start off as rivals in the Beyblade arena but gradually form a bond. In many fanfictions, this evolution is explored in detail, like how they learn to trust and rely on each other. Additionally, the challenges they face together, whether it's against a new enemy or dealing with internal team issues, play an important role.
The theme of redemption also appears. Cinder, with her past actions and the way she was treated, often finds redemption through her relationship with Kai. He helps her to see that she can be more than her past mistakes and that she has the potential to be a great force for good in their world.
One common theme is friendship development. Since they are two characters, often their relationship starts from some form of acquaintance and then grows into a deeper bond. Another theme could be adventure, where they go on quests together.
A strong plot is another characteristic. It could be an adventure that the two embark on together, or a story about how they overcome differences. In some cases, it might be a mystery that they solve side by side. The plot should be engaging and keep the reader interested.