The main characters are the thief and Riki. The thief is the protagonist in terms of the action of writing the love letter. Their character might be complex, perhaps having a troubled past or a unique charm. Riki, on the other hand, is the object of the thief's affection. They could be portrayed as someone special, like a kind - hearted person or a character with a certain allure that attracts the thief. The story would revolve around these two characters and their relationship as developed through the love letter.
The main characters are most likely the thief and Riki. The thief is the one writing the love letter, so they are a central figure. And Riki is the recipient of the love letter, making them also a key character in this fanfiction.
It could be about a thief who writes a love letter to Riki. Maybe it involves a story where the thief has some sort of connection or affection towards Riki and expresses it through this letter in the context of a fan - created story.
The main characters are clearly the thief and Takuto. The thief is likely to be a complex character, with motives that may not be entirely clear at first. Takuto, on the other hand, could be a more innocent or naive character who becomes the object of the thief's affections.
The 'love letter from thief x fanfiction' might be centered around the theme of redemption through love. The thief, who is typically associated with wrongdoings, could be on a path of change due to the love expressed in the letter. This fanfiction could explore different settings, from a gritty urban landscape to a more fantastical world, and how the love letter serves as a catalyst for change in the relationship between the characters.
Another possibility is that the love letter thief is a misunderstood artist type. He sees the love letters as a form of art or inspiration. The maid could be a very practical person who doesn't understand his motives at first. As the story progresses, they learn from each other. The thief learns about the value of hard work from the maid, and the maid learns about creativity and passion from the thief.
Maybe there's a kind postman. He is always the one delivering the love letters, so when they start to go missing, he becomes suspicious. He starts to keep an eye out for any strange behavior around Yuki's mailbox. Also, there could be a wise old neighbor. This neighbor has seen a lot in life and notices the change in Yuki's mood due to the missing letters. They offer some words of wisdom to Yuki and might even help in the search for the thief without directly getting involved.
I think it could be about a unique relationship. The 'thief x hiro' part might suggest a story where a thief has some sort of connection with Hiro. Maybe the love letter is a way for the thief to express feelings that are unexpected given their criminal nature. It could also explore themes of redemption or the power of love to change someone.
There could also be a sidekick or accomplice of the love letter thief. This character could add more depth to the story. For example, the sidekick might be trying to convince the thief to come clean to the maid about his feelings. As for the maid, she might have a best friend or a family member who plays an important role. They could be the ones who notice the maid's distress when she realizes her letters are being stolen and encourage her to find out who's behind it.
One plotline might be that the recipient of the love letter is a detective or someone who is supposed to be the thief's enemy. The love letter throws them off balance and they have to deal with their own feelings towards the thief. Or perhaps the thief is part of a group, and the love letter causes a rift within the group as they have different opinions on the thief's newfound emotions.
The unique relationship between the thief and Tatsuro is what makes it interesting. The idea of a thief having a connection with Tatsuro, perhaps a forbidden or unexpected one, can lead to a lot of drama and tension in the fanfiction.
Common themes might include adventure. Characters from 'Love Letter from Thief X' are likely to embark on adventures in the 'Kenshi' universe. There could also be a theme of loyalty. As the characters face new challenges in the combined fanfiction world, their loyalty to each other or to new causes they discover in 'Kenshi' could be explored. And of course, there might be a theme of culture clash as the two very different universes collide.