Yes, there are quite a few. You can start by looking on some popular fanfiction websites like Archive of Our Own. There, you might find stories that range from heart - warming friendship - based tales to more adventurous storylines involving Yukina and Kisa.
You could also try Wattpad. While it has a wide variety of content, there are likely some Yukina x Kisa fanfictions among them. You might need to use the search function and filter through the results to find the ones that interest you.
One common theme could be friendship. Their relationship might start as friends and develop over time. Another theme could be growth, like personal development of the characters as they interact with each other.
One popular yukina x kisa fanfic is 'A Bond Beyond Words'. It beautifully depicts their relationship, with detailed descriptions of their interactions and how they grow closer over time.
There could be many types of stories in it. Maybe some are about friendly animals helping each other. For example, a little rabbit might help a lost bird find its way home. This kind of story teaches kids about kindness and friendship.
Another theme could be set in different scenarios or AUs (Alternate Universes). This could include things like a high - school AU where they meet in a different context than in the anime. In these AUs, their personalities might be explored in new ways, and their relationship could develop in unique directions.
I'm not sure of specific Yukina x Kisa non - mpreg fanfics. But you can try searching on popular fanfic platforms like Archive of Our Own. Use the tags 'Yukina' and 'Kisa' and exclude any mpreg - related tags. You might find some great stories about their relationship in other themes like friendship or adventure.
A plotline could involve them building a friendship. Maybe Kisa is new to a place and Yukina helps her fit in. They start sharing their interests, like Yukina introducing Kisa to her favorite music or Kisa showing Yukina some cool books she likes. As they spend more time together, their bond deepens into a strong and supportive friendship.