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.
Communication is also key. The OC could start off being a bit afraid of Sebastian but as they talk more, she realizes he has his own code of honor. For example, in quiet moments in the Phantomhive library, they have conversations about their different worlds. The OC might share her human experiences and Sebastian could talk about his duties as a butler, which gradually deepens their bond.
First, you need to have a clear concept of your OC. Decide on their appearance, personality, and backstory. For example, if your OC is a shy and kind - hearted person, it will contrast with Sebastian's more devious nature. Then, think about how they will interact with Sebastian. Will they be in awe of him, or will they be a bit of a challenge? Also, research the Black Butler world. Know the rules about demons, the Victorian setting, and the other characters. This will make your fanfiction more believable.
One great 'Black Butler Ciel and Sebastian fanfiction' is 'The Demon's Contract Renewed'. It delves deeper into the complex relationship between Ciel and Sebastian. The author beautifully portrays Ciel's struggle with his past and future while maintaining his pride, and Sebastian's unwavering loyalty (in his own devilish way). It's a must - read for any fan of the duo.
One great 'Black Butler Ciel Sebastian Fanfiction' is 'The Demon's Contract Renewed'. It explores a new set of challenges for Ciel and Sebastian in a very engaging way.
The dark and gothic atmosphere of the 'Black Butler' world is also a prevalent theme. Writers love to recreate and expand on the spooky and mysterious elements, like the supernatural occurrences and the Victorian - era setting.
One plot idea could be that the OC is a new servant in the Phantomhive household. Sebastian initially views her as a nuisance but as they interact more, a strange attraction develops. For example, during a ball at the manor, the OC accidentally spills wine on a noble guest. Sebastian steps in to save the situation and in the process, he realizes her charm and quick - wittedness.
Sebastian might fall for a young girl who was an outcast in society. She had a special gift of seeing demons. At first, Sebastian was only interested in her because of this unique ability. But as he spent more time with her, he started to care for her in a different way. He would secretly bring her little treats and protect her from other demons who might want to harm her. Eventually, his feelings grew into love as he realized how pure her heart was despite all the hardships she had faced.
In Black Butler Claude x Sebastian fanfiction, a common theme is the exploration of their demonic natures. Writers often delve into how their demon instincts interact with their relationships. Also, themes of loyalty and betrayal are popular. For instance, what would make one of them betray their master for the other? It's all about the complex web of relationships and power dynamics that make these characters so interesting in fanfiction.