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. Given their different personalities, their friendship is often explored, like how they learn to accept and support each other.
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.
There are many great Finny x Reader fanfictions in the Black Butler fandom. You can start by looking on popular fanfiction websites like Archive of Our Own. Some stories might focus on the sweet and innocent relationship between Finny and the reader, exploring their adventures together in the Black Butler universe.
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.
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.
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 good Black Butler Finny x Reader fanfiction often has well - developed characters. It should capture Finny's innocent and strong - willed nature accurately. For example, his loyalty to the Phantomhive household should be reflected in the story if it's set in that context. The relationship with the reader should also be believable, not rushed.
One popular theme is the reader helping Ciel with his revenge plot. Since Ciel is on a mission for vengeance in the original series, many fanfics explore how the reader can be involved in that journey, either by providing emotional support or practical assistance.
One common theme is the reader character being involved in the dark and mysterious world of the Black Butler universe. For example, they might be a new servant in the Phantomhive household and have to deal with all the supernatural events there.
To write a good Black Butler Finny x Reader fanfic, you need to understand the tone of the Black Butler universe. It's often dark and mysterious. For the relationship with Finny, show his vulnerability as well as his strength. Build the story gradually, don't rush into a relationship. Let the reader and Finny get to know each other through various events. And don't forget to add some conflict, like a threat to the manor or a misunderstanding between the characters.