Many Alois Ciel fanfics also tend to be set in the same or a similar Victorian - era inspired world as the original source material. This allows for the use of the same kind of atmosphere, with all the elegance and underlying darkness. For example, the detailed descriptions of the grand mansions and the strict social hierarchies add to the overall feel of the fanfic.
One common theme is rivalry. Ciel and Alois are often pitted against each other in these fanfics, competing for power, status or just simple dominance.
There's also the theme of friendship in some fanfics. Despite their differences, some stories show them gradually becoming friends. This usually involves them learning to understand and accept each other's past traumas and current motives, which is a very interesting and heartwarming take on their relationship.
The theme of redemption also pops up sometimes. Since both characters have their dark sides, some fanfics explore the idea of them finding redemption through their relationship with each other. They might help each other overcome their past traumas and grow as characters.
One common element could be their internal struggles. Ciel and Alois both have complex backstories, and in these fanfics, their past traumas often resurface, leading to depression. Another element might be their isolation, as they may feel alone in their pain.
Popular Alois x Ciel fanfic often features intense character development. Since both characters have distinct personalities, a good fanfic will show how they change and adapt in relation to each other. For example, Alois's impulsive nature might be tempered by Ciel's more calculating side.
There's also 'The Unspoken Attraction'. This fanfic focuses on the hidden feelings Ciel and Alois have for each other. It's filled with a lot of character introspection and the development of their relationship is shown through a series of events that are both exciting and thought - provoking.
The best aspect is the exploration of their relationship. Cuddling in these fanfics can show a softer side to their usually complex and often antagonistic relationship.
There is 'Alois's Redemption in Ciel's World'. In this fanfic, Alois finds himself in Ciel's world and has to adapt. It shows his journey of self - discovery and how his relationship with Ciel evolves in this new setting. It's really interesting to read how their personalities clash and then gradually find common ground.
There is 'The Unlikely Bond'. In this fanfic, Ciel and Alois are forced to work together in a situation that challenges their beliefs and loyalties. It's a really interesting read as it shows how they can both hate and rely on each other at the same time.