One common theme is friendship. Given their different personalities, their friendship is often explored, like how they learn to accept and support each other.
Another theme is loyalty. In many fanfics, they show loyalty to each other and to the Phantomhive household. They are there for one another through thick and thin, whether it's facing demons or just dealing with the daily chaos in the manor. For example, Bard might protect Finny from some of the more dangerous aspects of their work environment, and Finny in turn will help Bard with his tasks when he can. They also both have a strong sense of loyalty to Ciel, and their relationship can be seen as part of that loyalty to the household.
One great 'Black Butler Finny x Bard' fanfic is 'The Garden of Their Bond' on FanFiction.net. It beautifully explores their relationship in the context of the Black Butler universe, with Finny's innocence and Bard's gruffness creating an interesting dynamic.
Well, one common theme is growth. The reader character may grow in confidence or understanding with Finny by their side. Also, there's often a theme of acceptance. Finny has his own quirks in the Black Butler universe, and the fanfics might show the reader accepting him for who he is, and vice versa. It's about two characters coming together and learning to be themselves around each other.
One common theme is friendship. Their unique personalities make for an interesting exploration of how they become friends and support each other through different situations.
The plot could center around their different personalities. Bard is the tough, former soldier type, and Finny is the innocent and strong but simple - minded one. They could start off as just comrades but then gradually develop deeper feelings. For example, Bard could start protecting Finny more often, which makes Finny feel special.
One possible storyline could be Finny and Bard teaming up to save the Phantomhive manor from a sudden attack. They use their unique skills, Finny's superhuman strength and Bard's cooking - which can be surprisingly useful in a fight when he uses his explosive recipes. Another could be a story where they go on a journey to find a special ingredient for a meal that Ciel has requested, and during the journey, they discover more about each other's pasts and form a deeper bond.
One common theme is loyalty. Finny's unwavering loyalty to Ciel is often a central aspect. Another theme could be protection. Finny protecting Ciel from various threats, be it other supernatural beings or human enemies. Also, growth is a theme. Ciel might grow as a person because of his interactions with Finny, learning about emotions like trust and kindness that he may not have fully understood before.
Their relationship can be characterized as a comical and endearing friendship. Finny's naivete and Bard's more laid - back yet tough attitude create a fun dynamic. They often get into silly situations together, like when Finny tries to help Bard with his cooking and ends up making a huge mess. But they also look out for each other, for example, Bard protecting Finny when there is a dangerous situation at the manor.
One common theme is friendship. Finny's relationships with the other servants, like Sebastian and Mey - Rin, are often explored. Another theme is self - discovery. Finny is a character with a lot of potential, and many fanfictions focus on him finding out more about himself.
A fanfiction could explore the idea that Bard and Finny have been secretly attracted to each other for a long time. Finny might be a bit shy about his feelings, while Bard is more bold. One day, Bard decides to make a move by bringing Finny a special treat he made in the kitchen. This small gesture could be the start of a yaoi - themed relationship between them.
One common theme is the idea of Finny's innocence and how the reader character helps him navigate the complex world of the Black Butler universe. Another theme could be the growth of a relationship between Finny and the reader in the face of the various dangers and intrigues in the story's setting.