Perhaps in a fan - made apocalyptic version of the Fairy Tail world. A great evil has spread across the land, and Mirajane is at the forefront of the fight. However, the evil is too strong and manages to mortally wound her. She dies in the arms of her guildmates, and her death serves as a catalyst for the remaining members to fight even harder to defeat the evil and restore peace.
Well, a common scenario is that Natsu dies in a battle against an ancient and powerful demon. He fights bravely but the demon's power is overwhelming. Natsu realizes that the only way to stop the demon from destroying the world is to use a self - destruct type of magic move. He does it, sacrificing himself for the greater good. Another could be that Natsu is tricked by a dark wizard into a magic - trapping spell. His friends try their best to break the spell but it drains Natsu's life energy until he dies. And there's also the possibility that Natsu's overuse of his dragon - slayer magic due to a series of intense battles causes his body to give out and he passes away.
One possible scenario could be Levy getting caught in a powerful dark magic spell during a battle. The spell slowly drains her life force as she tries to fight it off but fails. Another could be that she sacrifices herself to save her friends in the Fairy Tail guild. She might jump in front of a fatal attack meant for one of her beloved comrades.
Another scenario could be that in a battle against a new, extremely powerful foe, Lucy is caught in a crossfire between two massive magical attacks. Despite her friends' attempts to protect her, she gets fatally injured and dies. This would have a huge impact on the other characters in the Fairy Tail guild, leading to themes of grief, revenge, and moving on.
One possible scenario could be in a battle against a powerful dark wizard. Hermione might sacrifice herself to save Harry from a fatal curse. She could jump in front of him just as the curse is about to strike, taking the full brunt of it. This would be a very emotional moment as Harry realizes what she has done and is left to face the aftermath without her.
The guild would be in deep mourning. Elfman and Lisanna would be especially devastated as she is their sister. The guild's morale would take a huge hit. Mirajane was often a source of strength and stability for the younger members. Without her, there would be a sense of emptiness in the guild hall.
In a fanfiction, Robin could sacrifice himself to save the world from a major threat. He discovers a way to stop an alien invasion but it requires him to give up his own life. He willingly does it, knowing the importance of his sacrifice. His death shakes the foundation of the Young Justice world and his friends have to learn to move forward without him.
There are also fanfictions where their personalities blend perfectly. For instance, in a story where they are helping a new member of the guild adjust, Levy's kind and patient nature combines with Mirajane's warm and friendly demeanor. They work as a team to make the new member feel welcome. And when it comes to dealing with guild rivals, their combined personalities - Levy's intelligence and Mirajane's assertiveness - make them a formidable duo that can handle any situation.
There can be all sorts of 'what if' scenarios. Maybe what if Natsu never joined Fairy Tail? Or what if Lucy had a different kind of magic?
Perhaps in a fanfiction, Gohan dies protecting his family. He stands against a powerful foe that targets his loved ones. He endures a brutal battle, but in the end, his injuries are too severe. His death shatters his family and friends, and the Z - fighters are left to pick up the pieces and continue the fight without him.
One scenario could be in a battle against the Empire. Sabine sacrifices herself to save her friends. She holds off a large number of stormtroopers while the others escape. As she does this, she takes one final look at her beloved weapon, her graffiti - covered armor now bloodied, and falls heroically.