The friendship - across - universes trope is also big. Characters from Naruto and Fairy Tail form strong bonds despite coming from different worlds. For example, Naruto and Natsu becoming best friends and fighting side by side against common enemies. Their different fighting styles and personalities complement each other, making for an exciting story.
The 'rivalry' trope is quite common. A powerful Otsutsuki could be seen as a rival to the strongest mages in Fairy Tail. There's also the 'redemption' trope. Maybe an Otsutsuki who has been on the wrong path could find a new way of life in the Fairy Tail world with its emphasis on friendship and second chances. And of course, the 'epic battle' trope where the combined forces of Naruto and Fairy Tail characters fight against a common enemy, like an even more powerful Otsutsuki or a dark magic - using villain.
The 'romantic crossover' trope is also quite popular. Picture Edward falling for a Fairy Tail mage or vice versa. It adds an interesting dynamic to the story, mixing the brooding love of Twilight with the more flamboyant relationships in Fairy Tail. There's also the 'team - up' trope, where characters from both series join forces to face a common enemy, which often leads to some exciting battles and plot developments.
One popular trope is the 'relaxation and bonding' trope. In many fanfictions, the characters go on vacation to relax after all their battles. They get to bond in new ways, like having a campfire and sharing stories. Another is the 'romantic getaway' trope. For example, Natsu and Lucy might go on a vacation just the two of them and their relationship develops further in a more peaceful setting.
The power - up trope often occurs in nonhuman Lucy fanfiction. When she becomes nonhuman, she gains new powers. For instance, if she turns into a phoenix - like being, she can rise from the ashes and heal herself. This makes her a more formidable character in the Fairy Tail world and also changes the dynamics of her relationships with other characters as they now have to deal with her new - found strength.
One popular trope is the 'power - up' trope. In many fanfictions, characters from both Fairy Tail and Demon Slayer gain new powers or improve their existing ones in unique ways. For example, a fanfiction might have Tanjiro learning some Fairy Tail magic to enhance his demon - slaying abilities. Another common trope is the 'team - up' trope. Fans love to see characters like Natsu and Tanjiro working together against a common foe. It creates a lot of exciting action scenes and interesting character dynamics.
One popular trope is the struggle for power. The necromancer in Fairy Tail fanfiction often has to deal with the power they possess. They might be tempted to use it for wrong reasons like revenge or domination. Another trope is the outcast status. Since necromancy is often seen as a dark art in the Fairy Tail universe, the necromancer character is usually an outcast, shunned by the regular guild members. And then there's the redemption arc. Some fanfictions show the necromancer trying to redeem themselves and use their powers for good, despite the initial negative perception.
A common plot in Naruto vs Fairy Tail fanfiction is the power - exchange or power - up concept. For instance, a Fairy Tail wizard might gain some of Naruto's chakra - based abilities and use them in a new and interesting way. Or Naruto could learn some magic from Fairy Tail. Also, there are plots centered around a love interest between characters from the two universes. This can create a lot of drama and conflict as they come from different worlds with different values and cultures. Additionally, some fanfictions explore what would happen if the main villains from both series joined forces and how the heroes from Naruto and Fairy Tail would deal with it.
A common trope is the 'power - up' trope. In a fanfiction, a character might gain the power of the Rinne Sharingan and use it to become super - powerful in the Fairy Tail world. This could lead to them quickly rising through the ranks of the Fairy Tail guild. Another trope is the 'fish - out - of - water' trope. A Naruto character with the Rinne Sharingan in the Fairy Tail universe would be like a fish out of water, not understanding the magic system at first but gradually learning and adapting.
In Fairy Tail Erik x Kinana fanfiction, a common trope is the 'protector - protected' dynamic. Given Erik's more powerful and often dangerous nature, he could find himself in the role of protecting Kinana. At the same time, Kinana could be protecting Erik in an emotional sense, like protecting his new - found good side. The 'healing love' trope is also popular, where Kinana's love and kindness heal Erik's emotional wounds from his past misdeeds. And the 'discovery of self - through - love' trope, as their relationship makes both of them understand themselves better.
In Overlord anime fanfiction, a common trope is the 'What if' scenarios. For example, what if Ainz Ooal Gown made different choices in ruling the Great Tomb of Nazarick. Another is the overpowered protagonist trope which is already prominent in the original but gets explored further in fanfiction. In Fairy Tail fanfiction, the 'found family' trope is popular as the guild is like a big family in the original. Also, the 'power - up' trope where characters gain new magic abilities is quite common.