I think 'darker than black amber and hei fanfiction' might be exploring the darker aspects of the 'Darker than Black' universe. It could focus on the complex characters and their moral gray areas, perhaps with a particular emphasis on Amber and Hei's relationship.
Well, in many Hei and Yin fanfictions, the authors play around with their abilities. For example, they might create scenarios where Yin's Contractors' powers interact in unique ways with Hei's powers. It makes for some really interesting reading as it shows different perspectives on their characters.
Fanfiction about 'Darker than Black: Yin and Hei' can explore various aspects. It might focus on character development, such as delving deeper into the pasts of Hei and Yin. For example, a fanfic could explore how Hei's experiences in the past shaped his current personality and actions in the series.
In this fanfiction, Hei is often depicted as a complex and brooding character. His past experiences shape his actions and relationships. Suou, on the other hand, might be shown as evolving from a naive state. The fanfiction could explore how their interactions change over time.
The plot might start with an introduction of their relationship, whether it's one of mistrust or an immediate connection. Then it could develop as they face various challenges together, perhaps related to the world of Contractors. As the story progresses, their bond may strengthen or be tested in different ways.
One great 'Darker than Black - HEI Crossover' fanfiction is 'The Unlikely Alliance'. It brings together characters from different arcs in a really interesting way. The author does a good job of maintaining the personalities of the characters from the original series.
One possible fanfiction could be about Hei and November 11 teaming up for a dangerous mission. They might face challenges that test their loyalty to each other and the organization they work for. For example, they could be sent to infiltrate an enemy base where they have to rely on each other's unique abilities to succeed.
A good antagonist could be a rogue Contractor who has a vendetta against Hei. Maybe this Contractor was once part of the same organization as Hei and feels betrayed. He could have unique powers that pose a real threat to Hei, like the ability to manipulate time in small increments, making it difficult for Hei to land a hit during a fight.
The unique world - building of the original work also contributes. The concept of Contractors and their powers is fascinating. Fanfiction can play around with these powers, creating new power combinations or exploring the limits of existing ones. For example, a fanfic could show a Contractor with a never - seen - before power and how it affects the balance in the 'Darker than Black' world.