Well, 'The Unlikely Bond' is a really good one. It focuses on how Ciel and the demon form an unexpected emotional bond that goes beyond their initial contract. The story is beautifully written and really makes you feel for the characters. 'Ciel's Journey Beyond' is also great. It takes Ciel and the demon on a journey to a far - off land where they encounter strange creatures and new cultures. This fanfiction does a great job of world - building. And 'The Demon's Secret' is a fan favorite. It reveals a long - held secret of the demon that changes the whole dynamic between him and Ciel.
One idea could be a fanfiction where Ciel and the demon, instead of their usual master - servant relationship, become allies in a different realm. They could be on a quest to save a parallel world that is being threatened by a powerful dark force. Another idea is a story where the demon has to protect Ciel from a group of rogue demons who see Ciel as a valuable asset due to his connection with the underworld. Maybe in this fanfiction, Ciel discovers a new power within himself that the demon has to help him control.
One common theme is the exploration of Ciel's relationship with Sebastian as a demon. How their contract changes and how Ciel adapts to his new demonic nature. Another theme is Ciel's struggle for power in the underworld, as he is now a demon. It often involves him facing other powerful demons.
One idea could be Ciel exploring his new demonic powers. He might start to see the world in a completely different way, with his values shifting as he is no longer bound by human limitations. For example, he could use his powers to seek revenge in a more extreme way than he could as a human.
One popular theme is the complex relationship between Ciel and Sebastian. It often explores the power dynamics, with Sebastian being a demon bound to serve Ciel. Another theme is the dark and mysterious world they inhabit. Many fanfictions delve into the supernatural elements of the Black Butler universe, like the existence of other demons and their motives. Also, the idea of Ciel's revenge and how Sebastian aids him in that quest is a common theme. It shows how their goals are intertwined despite their very different natures.
Fanfiction about Ciel's twin in 'Black Butler' can offer unique perspectives. It might explore what could have been if the twin had survived. Writers could delve into how the twin's presence would change the power dynamics with Sebastian, and the overall plot of the story.
In fanfiction, Ciel might be crying due to a resurfacing of his past traumas. His experiences of losing his parents and being tortured are deeply scarring. A well - written fanfic could explore a moment where a trigger, like seeing something that reminds him of his family's death, causes him to break down.
The fanfiction could also focus on the visual elements. Wonderland is known for its out - of - this - world scenery and creatures. In a 'Black Butler' context, the contrast between Ciel's dark and often Victorian - era aesthetic and the bright, wacky world of Wonderland could make for some really interesting descriptions. Artists might be inspired to create some amazing fanart based on such fanfictions.
In fanfictions, Ciel's character development can be shown through his growing understanding of the world of demons. As he spends more time with Sebastian, he may become more aware of the true nature of power and the cost of his revenge. His relationship with other characters also plays a role. For example, interactions with his servants might make him more empathetic or, in some cases, more callous as he tries to maintain his position of power.
As time goes on, Demon Ciel could develop a more complex understanding of the demon hierarchy. This might lead him to seek more power within the demon world. He could start to manipulate other demons to his advantage, using his wits and newfound demonic abilities. His relationship with Sebastian would also be a key factor in his evolution. If Sebastian were to face a threat, Ciel might have to step up and show a side of himself that is more protective and assertive in the demon realm.