A fanfiction might tell the story of a group of people who were affected by the events surrounding Lucifer's imprisonment in the cage. Maybe they lost loved ones during that time. Now, years later, they start to experience strange phenomena that seem to be related to Lucifer's presence in the cage. They must come together, face their old traumas, and figure out a way to stop whatever is causing these new problems that seem to be linked to Lucifer.
One possible fanfiction could focus on a character who has witnessed Lucifer in the cage and is now dealing with the trauma. They might have nightmares constantly, seeing Lucifer's menacing face. The story could be about their journey to overcome this trauma, perhaps through the help of the Winchesters who have their own experiences with the devil.
In some fanfictions, Lucifer might isolate himself. He could be constantly haunted by the memories of the cage, and the solitude becomes his way to cope, as he doesn't trust anyone enough to let them in on his internal turmoil.
A third common theme is the search for understanding. Lucifer in post - cage trauma fanfiction often tries to understand why he was put in the cage, what it all means, and how he can move forward. He may seek answers from other characters, or even from within himself through self - reflection. This theme adds depth to his character as he's no longer just a one - dimensional villain but a complex being dealing with the aftermath of a traumatic experience.
One idea could be that Lucifer from 'Lucifer' enters the world of 'Supernatural'. Maybe he teams up with the Winchester brothers to fight a common enemy, like a new type of demon that is causing chaos in both their realms. He could use his devilish charm and powers in a way that the Winchesters are both skeptical and intrigued by.
Perhaps a fanfiction where Lucifer and his brothers are forced to team up against a common enemy much stronger than any they've faced before. During this time, they have to put aside their differences and learn to trust each other again, leading to some heartfelt moments and character growth for all of them.
A fanfiction could involve a young girl who discovers she has some sort of psychic ability that makes her a target for Lucifer. She lives in a small town and one night, she has a nightmare about a dark figure. When she wakes up, she realizes it was more than a dream. Lucifer is in her room, his eyes piercing through her soul. She's so terrified that she can't even scream. All she can do is cower in her bed as Lucifer starts to speak in a low, menacing voice, telling her she's his now.
One idea could be that Lucifer from 'Lucifer' ends up in the 'Supernatural' universe and teams up with the Winchester brothers to fight a common enemy, like a powerful demon that's causing chaos in both their worlds. Maybe he uses his charm and powers in a unique way to help them out.
One idea could be a fanfiction where Lucifer and Michael are forced to team up against a new, greater threat. Maybe an ancient evil that even their father couldn't have foreseen. They start off hating each other but as they fight side by side, they begin to understand each other's perspectives a bit more.
One idea could be that Lucifer's daughter is raised by a human family. She has no idea about her true origin until strange things start to happen around her. She starts to see visions of Hell and demons, which leads her to discover her father is Lucifer. Then she has to decide whether to embrace her dark heritage or fight against it.
A plot idea could be that Lucifer wakes up in a human body with no memory of who he is. He starts living a normal life until strange things start happening around him that hint at his true identity. As he slowly regains fragments of his memory, he has to decide whether to embrace his old self or continue his new life.