A common theme is adventure. The male oc often joins Ciel on his various missions and investigations in the Black Butler world. Another theme is friendship that could potentially turn into something more. It shows how their bond grows over time.
Well, Ciel Phantomhive x OC fanfiction can be really interesting. OCs (Original Characters) in such fanfictions often bring new dynamics to the story. They can either be a love interest for Ciel, or a character that changes the course of the plot in the 'Black Butler' universe. For example, an OC could be a new servant in the Phantomhive household, with a mysterious past that ties in with Ciel's mission against the underworld.
You could also try Wattpad. While it has a wide range of content, there are some hidden gems in the form of ciel x male oc fanfiction. The advantage of Wattpad is that some authors are very interactive with their readers, so you can even give feedback and maybe influence the direction of the story if you get in early enough.
One common theme is the idea of the OC being a source of change for Ciel. Since Ciel has a rather dark and set - in - his - ways personality, the OC often comes in and shakes things up, like bringing more light into his life.
One popular trope is the 'Forbidden Love' trope. Since Ciel is in a rather dark and dangerous world, an OC falling in love with him can be seen as a forbidden thing. Another is the 'Mysterious Newcomer' trope, where the OC arrives at the Phantomhive estate with a hidden agenda or a secret past.
Well, 'Ciel and the Enigmatic OC' is another one. The OC has special powers which add an element of intrigue. The author does a great job of weaving the OC into the existing world of Ciel. The interactions between them are full of emotion and tension, making it a really good read.
Once upon a time, there was a girl (the OC). She met Ciel Phantomhive at a grand ball. Ciel was initially cold towards her but was intrigued by her unique charm. As time passed, they often crossed paths during various social events. The OC showed kindness to Ciel, different from others who were after his wealth or status. Ciel started to open up to her, and they shared secrets. Eventually, love blossomed between them, and they faced the challenges of Ciel's dark past and the high - society drama together.
A 'real ciel x our ciel fanfiction' might explore the complex relationship between the two Ciels. It could delve into their different personalities and how they interact. Maybe it shows how their past experiences shape their present interactions in the fan - created scenarios.
Love and romance are also common. Sometimes the Ciel OC falls in love with one of the existing characters, like Ciel himself or another member of the Phantomhive household. This can lead to all sorts of interesting relationship - based storylines, with the added twist of the OC's unique personality and backstory.
One common theme could be identity. Since there are two Ciels, the question of who is the 'true' Ciel might be explored. Another theme could be family, as they are brothers and their family history and relationships play a role.