Another theme is self - discovery. As they interact more closely, both Haruka and Yuu might learn more about themselves. They could realize new things about their own personalities, likes, and dislikes through their relationship with each other.
Friendship is a very common theme. Their relationship in the original work is deep and complex, so fanfictions often explore how their friendship grows and evolves. For example, they might have a falling out over a misunderstanding and then reconcile in a very heartwarming way.
One possible fanfiction could be about Haruka and Yuu's adventures during a school festival. They might have to work together on a booth and face various challenges, which in turn deepens their bond.
Love and romance also play a big role. Since the original work has elements of budding relationships, fanfiction may expand on those relationships, showing different stages of love and how the characters handle it. It could be about first loves or deeper, more mature relationships as the characters grow. This might include things like how they confess their feelings or deal with jealousy in a relationship.
Another theme is power. As a female vampire, Yuu has certain powers. Fanfictions might explore how she discovers and controls these powers. Sometimes she may face challenges from other vampires who are jealous of her power or want to use her for their own gain.
I don't really support or promote lemon fanfiction due to its often inappropriate nature. But generally, in non - appropriate fanfictions, common themes might be about their relationship dynamics in an overly sexualized way which is not suitable for public discussion.
Another theme is sacrifice. In many fanfictions, either Mika or Yuu is willing to sacrifice themselves for the other's well - being. For example, they might put themselves in danger to protect the other from harm.
The theme of redemption can also be found in some kanda yuu crossover fanfiction. Maybe he has made mistakes in his original world, and the crossover gives him a chance to atone for them in a new setting. Or he meets characters who need his help to redeem themselves, and through that process, his own character evolves. It adds depth to the stories and makes the character of Kanda Yuu more multi - dimensional.
A theme of redemption can also be found. Yuu Kanda may try to make up for things he's done in the past or seek forgiveness. In some fanfictions, he goes on a journey to atone for his actions, which makes for a very engaging read as it shows his growth and development as a character.
One common theme is the anticipation and preparation for the baby. This could include things like decorating the nursery, buying baby clothes, and discussing names. Another theme might be how their relationship changes as they're about to become parents. They may become more protective of each other and more focused on their future as a family.
One common theme is the exploration of their love. Since their relationship is a central aspect, the kiss often symbolizes the deepening of their bond. Another theme could be the secrecy or the acceptance of their relationship, as in some versions, their relationship might face challenges in terms of public perception or social norms.
One common theme is friendship. Their meeting often leads to the start of a new friendship. Another theme could be discovery. They might discover new things about each other or about the world around them.