A character could be cursed by a powerful entity to turn into a robot bit by bit. As they transform, they start to see the world from a different perspective. Their friends try to find a way to break the curse, and the story follows their journey through this strange situation which includes the character's internal conflict of becoming more robotic yet still feeling human.
One idea could be a scientist who is experimenting on artificial intelligence and accidentally gets his own consciousness transferred into a robotic body. He then has to deal with the new limitations and capabilities of the robotic form while trying to find a way to reverse the process.
Maybe a person is critically injured in an accident. In a desperate attempt to save their life, a secret organization turns them into a robot. The story could focus on how they adapt to their new mechanical existence and struggle with their lost humanity.
In 'FNAF Turned Human Fanfiction', a great plot idea could be the human - turned - animatronics trying to find a way back to their original forms. They could face challenges like discrimination from humans who remember them as terrifying animatronics. Also, their new physical forms might have some special abilities or weaknesses that add to the story.
Maybe a story where a human engineer creates a highly intelligent robot. The robot becomes the human's closest friend and together they solve mysteries or go on adventures. The robot could have unique abilities that help them in their quests.
One idea could be a character who is turned into a Grimm due to a failed experiment. They then have to struggle with their new form and inner Grimm instincts while still having memories of their human life. Another could be a human turned Grimm as a result of a dark magic spell, and they try to find a way to reverse it while being hunted by other Huntsmen and Grimm alike.
Another plot idea is the human - raptor having to adapt to the raptor social hierarchy. It could face challenges from other raptors who sense that this new raptor is different. This would lead to a story of self - discovery as the human - raptor tries to find its place both in the raptor world and in relation to its human past.
Maybe in this fanfiction, Naruto has to hide his true nature from his friends at first. As he was once the Kyuubi, he might be afraid of being rejected. This could lead to some really tense and emotional moments when his friends start to suspect something is different about him.
Well, a plot could revolve around a robot that has the ability to copy magic. It joins Fairy Tail to learn more about different types of magic, but some of the guild members are suspicious of it. As it tries to prove itself, it gets involved in a big conflict against an enemy who wants to use its magic - copying ability for evil. Also, there could be a story where a Fairy Tail mage creates a robotic sidekick. They go on adventures together, and the robot has unique abilities that complement the mage's magic, like being able to analyze an opponent's weaknesses quickly.
Perhaps the OC is a creation of a mad scientist who wants to use Ultron's technology to enhance their own creation. The OC then rebels against the scientist's control and teams up with Ultron for mutual benefit, leading to a series of adventures where they face various challenges together, such as fighting off military forces trying to destroy them.
Another plot could involve the 'not - quite - human' character forming an unlikely friendship with a human. Through this relationship, they both learn about acceptance and the differences between their worlds. For example, the human could teach the non - human about things like music or art, while the non - human shows the human a different perspective on life.
One idea could be Gumball and Darwin as humans starting a new school and having to deal with the typical high - school dramas like popularity contests and bullies. Another could be the Wattersons going on a road trip as humans and the various adventures they have along the way. Maybe Gumball as a human gets a part - time job and has to balance work, school and his family life.
One idea could be a human mechanic who discovers Megatron in a damaged state and tries to repair him while hiding him from other humans and Autobots. This could lead to a complex relationship where Megatron starts to question his views on humans.