One way is through conflict. For example, the reader could have different values than William regarding life and death in the Black Butler world. This conflict can force William to re - evaluate his own beliefs and in turn, develop his character. He might start to question the strict rules he has always followed.
Another development could come from shared secrets. If the reader discovers some deep - seated secrets about William or vice versa, it creates a bond. This bond can make William more vulnerable in front of the reader, which is a huge step in his character development as he is usually so guarded. Through this vulnerability, he can learn more about himself and his relationships with others.
The reader can also influence William by showing kindness. Since William is often in a world of darkness and strictness, the reader's kindness could be a breath of fresh air. This could lead to him becoming more protective of the reader and as a result, his character develops in terms of having a new sense of purpose - protecting someone he cares about.
If we look at it from a more romantic perspective, it's a contrast of personalities that can be very appealing. The reader might be someone who brings out the softer side of William. Their relationship could develop through shared experiences, like dealing with the chaos that often ensues in the Black Butler universe. It's a relationship that could grow slowly, with William gradually opening up to the reader.
Well, first, you could give her a distinct personality. For example, if Ciel is more reserved and calculating, she could be outgoing and impulsive. This would create an interesting dynamic when they interact. You can also develop her backstory. Say she had a special relationship with a particular character in their childhood that influenced her actions in the present.
One way to develop their relationship is through emotional vulnerability. Ciel, who is usually so guarded, could let his guard down around Claude in a moment of extreme stress or exhaustion. Claude, seeing this side of Ciel, might be moved and show a more caring side himself. This could start a chain reaction where they gradually open up more to each other. Another aspect could be the exploration of power dynamics. Claude is a powerful demon, and Ciel is his master in a sense. But as they interact more, the lines between master and servant could blur, leading to a more equal and complex relationship. This could involve Ciel challenging Claude's authority in some situations and Claude respecting Ciel's leadership in others.
Grell is impulsive and often acts on his desires, while William is more calculated. In fanfiction, this can result in interesting dynamics. Grell might drag William into unexpected situations, like chasing after a rare soul just because it looked interesting. William, on the other hand, would be trying to keep everything in line. Their personalities also have room for growth in fanfiction. Maybe Grell learns to be more disciplined from William, and William learns to loosen up a bit from Grell.
Their relationship could develop uniquely if Paula starts to see Sebastian as a mentor. She could ask him to teach her some of his skills, like self - defense or how to be more observant. Sebastian, being prideful in his abilities, might be initially hesitant but then start to enjoy teaching her. This would create a bond based on learning and growth.
The Undertaker's character can be developed by showing his vulnerability in love. For example, he might be hesitant to show his true feelings at first because of his dark past and the secrets he holds. But as the love story progresses, he could start to open up more and let his guard down.
A possible fanfiction plot is that Grell and William are given a mission to protect a special soul from being corrupted by a powerful demon. Along the way, Grell's flamboyant nature clashes with William's strict sense of duty, but they find that their combined skills are the only way to succeed. Or perhaps there's a plot where they get trapped in a magical realm and have to find their way out while dealing with their own complex relationship and the strange creatures in the realm.
They could start sharing more personal stories. For example, Ciel could open up about his past traumas to Soma, and Soma could share his dreams for his homeland. This would create a deeper emotional connection between them.
It can enhance the fandom by providing more content. Fans are always hungry for more stories, and fanfiction fills that gap.
Well, in these fanfictions, the connection between Snake and the reader can be really diverse. Sometimes it's a slow - burn romance where the reader first has to gain Snake's trust, as he's quite guarded. His snakes can play a role in this too, either as a hindrance or a help. And the setting of Black Butler adds a layer of mystery and danger. The fanfiction might show how the reader adapts to this world while getting closer to Snake.