One plot idea could be that the male demon reader is sent on a mission to the human realm where he encounters Elsa. He initially tries to use her powers for his own demonic purposes but as he spends time with her, he starts to develop real feelings. He then has to choose between his demon duties and his newfound love for Elsa.
A possible plot could be that the male demon reader has the ability to see the future. He foresees a great danger coming to Elsa and her kingdom. He approaches her, much to her suspicion at first. But as they start to work together to prevent the disaster, they learn more about each other. The male demon reader has to deal with his own dark past and Elsa has to overcome her fear of the unknown that the demon represents, and they fall in love along the way.
One idea could be that the male reader is a traveler who gets lost in Elsa's kingdom. He stumbles upon Elsa while she is using her powers, and at first, she is wary of him. But as they start to communicate, they find that they have a shared love for nature. And through their adventures exploring the frozen landscapes together, a relationship begins to form.
Another interesting plot could be that the reader is a time - traveler from the future. They come to Arendelle during Elsa's reign and know about all the events that are going to happen. The reader tries to help Elsa avoid some of the hardships she will face in the future, but in doing so, they accidentally change the course of history. This creates a complex situation where Elsa and the reader have to work together to set things right while also dealing with their growing feelings for each other.
For the male demon reader's character, you can start with his appearance. Maybe he has red eyes and black horns. His personality could be a bit of a rebel in the demon world. He's not fully evil but has a sense of mischief. He should also have some unique powers like the ability to control shadows, which would make him an interesting character when interacting with Elsa.
One plot idea could be that Elsa is kidnapped by an evil sorcerer who wants to use her ice powers for his own dark deeds. The heroes from her world then have to embark on a journey to rescue her. Another could be that Elsa is kidnapped by a group who think her powers are a threat and they plan to keep her locked away forever. However, her sister Anna discovers her whereabouts and tries to free her.
It's not ethical at all. Such fanfiction often involves taking a character from a children - oriented story like Frozen and turning it into something with adult - themed content. This not only disrespects the original creators and the target audience of the original work but also sets a bad example in the fan community. Fanfiction should be about enhancing the story world in a positive and respectful way, not introducing inappropriate elements.
A possible plot is that Elsa's kingdom is threatened by a force that is related to the same kind of threats the Avengers face. The Avengers hear about her and her powers and travel to her world to offer their help. Along the way, they learn about her backstory, and she learns about their heroics. Together, they combine their powers to save her kingdom and in the process, Elsa decides to join the Avengers on some of their adventures in their own universe.
Well, a frequent theme is the male reader's acceptance of Elsa's powers. He doesn't fear them like others in her world might, and this acceptance forms the basis of their relationship. Another is self - growth. Both the male reader and Elsa grow as individuals as they interact. For instance, Elsa might become more confident in her abilities, and the male reader might become more courageous. Also, the theme of bridging two different worlds often comes up, especially if the male reader is from a different place than Arendelle.
A common theme is redemption. Elsa may have felt guilty about past events related to her powers, and the male reader can be a part of her journey towards redemption. They also often face challenges together, which strengthens their relationship. Another theme is the power of connection. Whether it's an emotional, magical, or physical connection, it's explored in depth. For example, some stories show that their connection can even control or enhance Elsa's powers. And the theme of new beginnings is also prevalent, as their relationship represents a fresh start for Elsa especially.
A plot could involve Elsa's ice powers acting up during her pregnancy. Hiccup, being from a more technological and dragon - friendly world, tries to find ways to help her control it. They might seek the help of Toothless and other magical creatures in their world. Maybe they face opposition from some of their people who are not happy about their union, especially with a baby on the way. But they stand strong together and prove that love can bridge any gap.
One idea could be that a powerful dark sorcerer kidnaps Elsa because he wants to use her ice powers for his own evil deeds. He locks her in a magically sealed dungeon deep in an ancient castle. Another plot could involve a group of thieves who mistake Elsa for a valuable princess they can ransom. They take her to a hidden lair in the mountains. A third option is that a jealous rival from another kingdom, who envies Elsa's powers and her popularity, arranges the kidnapping to discredit her.