Well, it could be about Loki finding himself in a situation where darkness is encroaching upon a world that was once filled with light. Maybe he has to face some dark force that is slowly consuming the realms he cares about. And he might be the only one who can stop it, perhaps using his trickery and magic in ways that no one expected.
Obviously, Loki would be one of the main characters. He could be joined by Thor, his brother. Thor might represent the 'light' in contrast to Loki's more complex nature. Maybe they have to work together to combat the encroaching darkness. Another character could be Odin, who might have some knowledge or power that is crucial in dealing with this situation.
Well, it could be about a character who is in a really dark place, like a post - apocalyptic world. Then, through some unexpected encounter, like meeting a group of kind - hearted survivors or finding a magical artifact, the character starts to see hope and the 'darkness turns to light'.
One possible plot twist could be that Naruto's control over light and darkness is initially seen as a great power, but it actually comes with a hidden curse. For example, every time he uses it too much, he starts to lose his memories related to his friends and his village. This would add a great deal of internal conflict for Naruto as he has to balance using his power to protect those he loves while also not losing his connection to them.
Maybe it's centered around a group of characters, both human and ghoul, who come together to fight against a greater evil in the Tokyo Ghoul world. Their unity and determination could be the 'light'. Well, in this fanfiction, they might face many difficulties as humans and ghouls have different natures. But through mutual understanding and cooperation, they strive to make the world a better place.
One possible plot could be that Izuku suddenly finds himself with Loki's powers and memories. He has to deal with the newfound ability to deceive and manipulate, which goes against his usual honest nature. He might use these powers to outwit villains in a different way than he usually does in his own story.
It could focus on a quest. Mab might enlist Loki's help for a task in her realm. Since she rules over air and darkness, perhaps there's something threatening her domain that only Loki's unique skills can assist with. It could involve navigating through dark magical mazes or dealing with rebellious spirits, and their journey together could be filled with twists and turns as they both have their own agendas.
Well, perhaps Laufey kidnaps Loki to use him as a bargaining chip against Odin. Maybe he wants to regain some lost power or territory.
Well, in a Loki meets Hela fanfiction, it might start with Loki being forced to meet Hela in Helheim. He could be there on a mission for Thor or Odin. Hela might be intrigued by Loki's presence. She could offer him a deal - his freedom in exchange for helping her gain access to Asgard again. Loki would have to weigh the options and decide if he can trust Hela or if he's just walking into another one of her traps.
One possible plot is that Peter is exploring some strange part of the city, perhaps an alleyway that has some sort of magical anomaly. Loki, who is also drawn to the magic, appears. Peter is initially scared but then realizes Loki might not be there to cause trouble right away. They could end up teaming up to solve the mystery of the strange magic, with Loki teaching Peter some things about magic along the way.
The plot could start with Loki being banished to a different realm which turns out to be the world of Sally Jackson. He finds himself in her body and has to deal with her relationships, like being Percy's mother. Loki might initially struggle with the concept of being a mother and having to protect Percy. He could use his godly knowledge and powers in unexpected ways to protect Percy from the threats in the Percy Jackson world. As the story progresses, Loki could start to understand the value of human emotions and relationships more deeply, all while trying to figure out how to break the spell or situation that put him in Sally's shoes.