There could be an OC story where an OC is a new servant in the Phantomhive household. This OC has a hidden talent for magic, which she tries to keep a secret from the other servants while also trying to fit in and gain Ciel's trust. They face various challenges and adventures within the manor, like dealing with the strange occurrences that often happen there.
One interesting Black Butler OC story could be about an OC who is a demon hunter trying to expose Ciel's deal with Sebastian. This OC might have unique powers and a complex backstory that led them to this mission.
Another Black Butler OC story might revolve around an OC who is a noble from a foreign land. This OC comes to England and gets involved with the Phantomhive family. They bring their own cultural traditions and a different way of dealing with the supernatural, which clashes and also combines with the existing ways in the Black Butler universe.
One interesting 'oc black butler fanfiction' could be about an OC who is a detective trying to solve a mystery in the world of Black Butler. They might interact with the main characters like Ciel and Sebastian in unexpected ways.
One common theme is the exploration of the supernatural. Since Black Butler has a lot of elements like demons and reapers, OC stories often involve OCs interacting with these supernatural beings, either as allies or enemies.
One tickle story could be when Sebastian might playfully tickle Ciel as a way to amuse him during a less tense moment. Maybe when Ciel is feeling a bit down and Sebastian uses tickling to cheer him up, making Ciel giggle despite his usually serious demeanor.
Well, one interesting concept could be modernizing the Victorian setting. For example, making the Phantomhive manor a high - tech mansion with advanced security systems instead of the old - fashioned one. Another concept might be the modern occupations of the characters. Instead of being a butler in the traditional sense, Sebastian could be a personal assistant with extraordinary skills in a corporate world. Also, modern OC (original character) can bring new dynamics to the story, like a modern detective OC who gets involved with the dark secrets of the Black Butler world.
One idea could be to create a demon OC who was once a human with a tragic past, like a wronged artist. The OC could have unique demonic powers related to art, such as being able to bring paintings to life in a twisted way. Another idea is a demon OC that is an outcast among demons because they have a sense of morality that is different from the norm in the demon world. They could befriend Ciel in an unexpected way and help him not just for the soul contract but out of genuine care.
Another plot could involve an OC who is a powerful magician from a foreign land. They come to England seeking a powerful artifact that Ciel also has his eyes on. This would lead to a series of battles and negotiations between the OC, Ciel, and Sebastian, with the OC having their own set of goals and motives that might not be entirely clear at first.
One idea could be an OC who is a detective from another country coming to London to solve a series of mysterious murders that seem to be linked to the supernatural activities in the Black Butler world. This OC could cross paths with Sebastian and Ciel as they are also investigating the same case from their own motives.
One interesting story is about how Sebastian, the demon butler, always manages to fulfill Ciel's requests in the most extraordinary ways. For example, when Ciel has to attend a dangerous social event, Sebastian uses his demonic powers subtly to protect Ciel while still maintaining the appearance of normalcy.
One popular story could be about an OC who is a new servant in the Phantomhive household and has a unique power that Sebastian is intrigued by. Maybe the OC can see the true forms of demons, which adds an interesting dynamic to their interactions.
The stories might also focus on the various challenges Ciel faces in the Victorian - era setting. His role as the Earl and his efforts to uncover the truth behind his family's misfortunes while dealing with the supernatural elements around him are quite engaging.