It could involve the last man's struggle to survive in a desolate world while also dealing with his own loneliness. Maybe he discovers a strange lemon - like plant that has some sort of special property that helps him in his survival. For example, it could provide him with a new source of energy or have healing abilities.
The plot might center around the last man finding a hidden cache of lemon - scented items. This discovery could trigger memories of the past when life was normal. He could then use these items to create a sort of memorial or a place that gives him a sense of comfort. As he goes about his daily tasks of survival, these lemon - related things could become a symbol of hope for him in the otherwise bleak world.
Well, the plot could be that Naruto is the sole survivor after some kind of apocalyptic event. Maybe all the other shinobi were wiped out by a powerful enemy or a deadly disease. Naruto then has to find a way to rebuild the world while also dealing with his loneliness and the memories of his lost friends.
The plot could involve Jimmy exploring the now - empty world. He could discover some mysterious force that made everyone disappear. He then tries to reverse it. Along the way, he might have to deal with his own emotions as he misses his friends and family. He could also find some strange creatures or phenomena that he has to understand and overcome using his scientific knowledge.
In this fanfiction, Harry could be the last man on earth due to a powerful curse from an ancient dark wizard. He'd have to rely on his knowledge and skills that he learned at Hogwarts. He might try to communicate with the portraits in Hogwarts, hoping they can offer some guidance. As he delves deeper into the mystery, he discovers that there are some magical creatures that are also affected by this, and he has to find a way to save them all as well.
It could be an ordinary guy. Just an average person who happened to survive whatever catastrophe wiped out the rest of humanity.
Well, it could be about survival. Maybe he has to find food and water all by himself. He might also face threats from nature like wild animals or natural disasters.
Well, it could be about a man trying to survive in a post - apocalyptic world all alone. Maybe he's searching for other survivors while facing challenges like finding food and shelter.
In a 'last human on earth fanfiction', the plot might center around the last human's attempt to preserve human knowledge. They could go to libraries and museums, collecting important books, artworks, and scientific findings. This would be a way for them to feel like they are still part of a greater human civilization, even if they are alone. And they may face challenges like natural disasters that threaten to destroy these remnants of humanity.
The plot might revolve around the relationship between Jimmy and Hugh. They could initially struggle to get along as they have different mindsets - Jimmy's scientific and Hugh's more laid - back. But as they face the challenges of being the last two men on earth, they learn to rely on each other. Maybe they discover that there are some threats out there that require both Jimmy's intelligence and Hugh's brute strength to overcome.
I think Batman has a good chance. He's a master strategist and is used to working alone. He has a wide array of gadgets and his detective skills would be very useful in a post - apocalyptic world. He could also use his knowledge of Gotham's underworld to survive.
One scariest plot twist could be that the last man discovers he is not actually alone. There are some other entities that have been observing him all along. These entities are not human but something far more sinister, like shadowy figures that can move through walls. He thought he was the last hope for humanity, but now he realizes he is just a part of some sort of experiment by these unknown forces.