Another theme is grief. When a character dies, it shows how the other members of Fairy Tail deal with the loss. They might go through denial, anger, and eventually acceptance, which is a very emotional journey.
The theme of mortality is also prevalent. In the normal Fairy Tail series, the characters seem invincible at times. But in death fanfiction, it makes it clear that they are not, and it forces the readers to think about the finality of life in the Fairy Tail universe.
One common theme is sacrifice. Characters often give up their lives for the greater good of the guild or their friends. For example, in many stories, a hero might die to save the guild from destruction.
A prevalent theme is regret. Characters may regret not being able to do more to save Lisanna. There's also the theme of revenge in some fanfictions. If her death was caused by an enemy, some characters might vow to take revenge. Additionally, the theme of unity can be seen as the guild members come together to support each other during this difficult time.
One common theme is friendship. Just like in the original Pokemon and Fairy Tail series, in fanfictions, characters from both universes form strong bonds. For example, Ash from Pokemon might become friends with Lucy from Fairy Tail and they help each other out.
One common theme is the combination of powers. Since both Naruto and Fairy Tail have their own unique power systems, fanfictions often explore how these powers can be combined or used in new ways. For example, Naruto's jutsu combined with Fairy Tail's magic. Another theme is the crossover of characters' personalities. The determined and hard - working nature of Naruto characters mixing with the lively and rowdy personalities of Fairy Tail members.
Magic exploration is also a prevalent theme. Since it's a fairy tail related fanfiction, Sienna usually gets involved in exploring different types of magic, whether it's a new form of magic she discovers or trying to understand the mysteries behind existing magic. Adventure is yet another common theme. Sienna embarks on various quests and travels to different and often dangerous places in these stories.
A common theme is the clash of different power systems. Since Fairy Tail has its magic system and Berserk has its own dark and brutal power elements, fanfictions often explore how these two power systems interact.
In a lot of Fairy Tail Karen fanfiction, the theme of power and growth is prominent. Karen has to train and become stronger, facing challenges along the way. There are also stories that deal with the theme of loyalty, where Karen has to prove her loyalty to the guild or her friends, especially during difficult times.
Friendship is also a big theme. Just like in the original works, characters from both universes form bonds. For instance, a character from Overwatch might team up with a Fairy Tail mage and learn about loyalty and friendship in a new way. It shows that no matter the world they come from, the value of friendship remains strong.
The themes in mermaid fairy tail fanfiction are diverse. A very prevalent one is friendship. Mermaids form strong bonds with their fellow sea - dwellers or sometimes with humans they encounter. The struggle between good and evil is also common. Mermaids might have to fight against evil sea witches or other malevolent forces. Additionally, the theme of the beauty and mystery of the underwater world is often explored, as mermaids are part of this enchanting realm.
A common theme is power. Since August is a very powerful character, many fanfictions explore his power limits and how he can further develop or control it. Another theme is redemption. Given his complex backstory, some stories might focus on him seeking redemption for his past actions.
One common theme is friendship evolving into something more. In Fairy Tail, the bonds of friendship are strong, and in gay fanfiction, it often takes a romantic turn. For example, two male characters who were just friends in the original might become lovers.