Common themes often revolve around loyalty. Glaceon could be fiercely loyal to the human it befriends, and the human could also show unwavering loyalty. There's also the theme of adaptation. The human has to adapt to the world of Pokémon where Glaceon lives, and Glaceon might have to adapt to human ways. Additionally, there could be a theme of cooperation. They work together to achieve a common goal, whether it's saving a Pokémon in trouble or finding a rare item in the Pokémon world.
Adventure is another common theme. They could go on a journey through different regions, facing challenges like battling other Pokémon or solving environmental puzzles. This gives the writers a chance to create exciting scenarios and show the bond between Pikachu and Glaceon growing stronger during these adventures.
The relationship can start with a chance encounter. Maybe the human stumbles upon an injured Glaceon and decides to help it. From there, trust begins to build as Glaceon realizes the human's good intentions. They can then start to communicate, even if it's in a simple way like understanding each other's body language. As they spend more time together, they learn about each other's likes and dislikes, which deepens their bond.
The theme of adaptation could be quite common too. The human might need to adapt to the strange environment or culture associated with the Tempest. Or vice versa, the Tempest might have to adapt to human ways. This can lead to interesting character developments and plot twists. There could also be themes related to friendship or even love that develop between the two, despite their differences.
One common theme is friendship. They are both Pokemon, so stories often explore how they form a bond. Another theme could be adventure, like going on a quest together.
Friendship is a possible theme. As two different Eeveelutions, they could show how different personalities can come together and form a great friendship. They might support each other through tough times and celebrate together during good times.
One possible theme could be unity. Despite their different types, Leafeon and Glaceon could come together. For example, in a story where they have to protect a special place from destruction. Another theme might be acceptance. They could learn to accept each other's differences, whether it's in appearance or abilities.
A frequent theme is the power of their bond. In the show, they are a strong team, and in fanfics, this can be explored on a deeper level. It could involve them facing new threats together and relying on each other more than ever. Also, themes of love and friendship are common. Some fanfics might focus on a romantic relationship developing between a human Senketsu and Ryuko, while others might emphasize their platonic but extremely strong friendship. There can also be themes related to the acceptance of differences, as Senketsu's nature is quite different from Ryuko's, and how they overcome any prejudices or misunderstandings in the fan - created stories.
Some 'female nergigante x human' fanfics may also have a theme of transformation. Maybe the human character is influenced by the nergigante in some way, either physically or mentally, and this transformation becomes a central part of the story. It could be a slow process that changes the human's perspective on life and the world around them.
Common themes include the power of friendship and love to bridge divides. In many 'Blood Elf x Human' fanfics, the two characters start off not understanding each other but through shared experiences, they grow closer. There's also the theme of sacrifice. Sometimes, to be together or to protect each other, one or both of the characters have to sacrifice something, like their standing in their own race's society. And cultural exchange is often there, as they learn about each other's traditions and ways of life.
The theme of transformation can also be common. Sometimes the human might gain some dragon - like abilities or the dragon might take on more human qualities as they interact. Another theme is the struggle against society's norms. Since their relationship is not typical, they often have to fight against the expectations and prejudices of their respective species' communities. This adds a layer of drama and conflict to the fanfics.