If Happy and Lisanna die in a Fairy Tail fanfiction, it would have a huge emotional impact on the other characters. Natsu, who is very close to Happy, would be devastated. He would likely go into a state of rage or deep depression. The guild as a whole would also be in mourning. It could lead to changes in the guild's dynamic, with some members perhaps becoming more withdrawn while others might be driven to seek revenge if their deaths were due to an enemy's actions.
One idea could be that Happy's death shatters the Fairy Tail guild. Natsu, being his closest friend, goes into a deep depression. The guild loses its usual cheer and the members struggle to come to terms with the loss. They might hold a grand memorial for Happy, and throughout the fanfiction, it could show how each character copes in their own way, like Lucy writing in her diary about all the memories she had with Happy.
Another possibility is an accident within the story. Perhaps during a chaotic battle or a magical experiment gone wrong, Happy could be caught in the crossfire or affected by some unforeseen magical consequence. This would be a tragic turn of events for the usually cheerful and helpful Exceed.
Happy's death would not only impact Natsu but also Carla. They have a unique relationship, and his death could make Carla more withdrawn or even cause her to leave the guild for a while. Regarding Lisanna, her relationship with the other guild members was always warm. Her death would leave a void in the guild's social fabric. Her friends like Levy and Cana would feel a great sense of loss. They might start to question the safety of being in the guild and whether they can truly protect each other.
If Happy dies, Natsu's power might be affected. Happy has always been by Natsu's side, and his death could cause Natsu to lose some of his confidence. For example, Natsu might not be as reckless in battles without Happy's support. The story could then shift to Natsu trying to regain his former self while also seeking revenge on whoever caused Happy's death.
One great 'Fairy Tail Lisanna' fanfiction is 'Lisanna's Return'. It beautifully explores her character after coming back. It shows how she readjusts to the guild and her relationships, especially with Natsu. The story has some really heart - warming moments where Lisanna is shown to be a strong and kind - hearted character again, just like she was before her supposed death.
One great fanfiction is 'Natsu and Lisanna's Adventure'. It beautifully portrays their relationship development. It starts with a simple quest they embark on together, and as they face challenges, their bond deepens. The author does a wonderful job of showing Natsu's protective side towards Lisanna and Lisanna's admiration for Natsu.
Another reason is that fanfiction gives the freedom to deviate from the main plot. In the case of Lisanna fanfiction, we can see her in alternate universes, like a world where she never disappeared or a world where she has different magical abilities. This allows for a lot of creativity and speculation, which is really engaging for fans of the series.
In some fanfictions, Natsu might save Lisanna from a powerful dark wizard. He could use his Fire Dragon Slayer magic to overpower the enemy and rescue her.
Well, many fanfic writers take creative liberties with Lisanna's death. Some might show it as a heroic sacrifice, where she gives up her life to save others in the guild. This could then be a source of inspiration for the other characters, pushing them to be better and stronger. Others may depict it in a more tragic and unexpected way, perhaps due to a misunderstood magic spell or an unforeseen enemy attack.