Well, the 'demon x reader' fanfics often have the trope of the 'accidental summoning'. The reader, usually a human, accidentally summons the demon, and from there, their relationship begins. There's also the 'soul - binding' trope, where the demon and the reader are somehow bound together, perhaps by a magical spell or a prophecy. This forces them to interact and often leads to the development of their relationship. Additionally, the 'demon mentor' trope is seen, where the demon teaches the reader about the supernatural world or some special powers that the reader may possess.
One common trope is the 'demon protector'. The demon takes on the role of guarding the reader from other threats in the story, whether they be other demons or some sort of dark magic. Another is the 'forbidden love' trope, as in the demon and the reader come from different worlds (human and demon) and their relationship is frowned upon by society in the fic's setting. And there's also the 'demon with a heart of gold' trope, where the demon may seem menacing at first but is actually kind - hearted deep down especially when it comes to the reader.
There's often the 'secret origin' trope. Maybe the reader's transformation is part of a bigger prophecy or some long - forgotten vampire ritual. And then there's the 'vampire mentor' trope, where an older, more experienced vampire helps the newly - turned reader navigate their new life, teaching them about hunting, hiding from sunlight, etc.
In many 'kenny x reader fanfiction', there's the trope of 'forbidden love'. It could be due to Kenny's family situation or some social circumstances in the fictional world. This trope creates tension and drama. Additionally, the 'reincarnation' trope might be used, where the reader and Kenny have a connection that spans multiple lifetimes. It gives a sense of fated love and mystery to the story.
A frequent trope is the 'fake dating' one. Maybe for some reason, Todoroki and the reader have to pretend to be a couple, perhaps to fool a villain or for a school event. As they pretend, they start to develop real feelings for each other. Also, the 'roommate' trope can be seen, where they end up living together either at the dorms or in some other situation, and that closeness leads to a romantic relationship.
Well, a typical trope is the 'discovery' trope. The reader usually discovers Herobrine in some unexpected way, like in an abandoned mine or a dark forest. Also, the 'mysterious allure' trope is common. Herobrine's mysterious nature draws the reader in, and they can't help but be intrigued by him. And there's often the 'transformation' trope too, where the reader might start to change or gain abilities after interacting with Herobrine.
The 'shared adventure' trope is also popular. Tracer and the reader embark on some exciting mission or journey together. During this time, they get to know each other better, and their relationship deepens. This could be anything from a stealth mission to retrieve some important Overwatch artifact to a journey through a strange and dangerous new area that has suddenly appeared in the Overwatch world.
The 'friends - to - lovers' trope is also quite popular in jongup x reader fanfic. They start as friends, sharing common interests or being part of the same group. As time passes, their feelings for each other grow deeper. There could be moments of jealousy when one of them gets close to someone else, which adds drama to the story. And sometimes there's the 'forbidden love' trope, like if jongup is from a different social class or has some sort of obligation that makes the relationship difficult.
A common trope is also the 'Outsider in a Strange World' for the reader. The reader is thrust into Sesshomaru's world, which is full of demons and magic. They have to adapt, and Sesshomaru often becomes their guide or protector in this new and dangerous environment. This trope allows for a lot of character development and relationship building between the two.
One common trope is the 'forbidden love' aspect. Since the puppeteer might be a somewhat mysterious or even menacing character in the original source, a relationship with the reader can be seen as something that's not supposed to happen. Another is the 'protective puppeteer' where he guards the reader from various threats.
In this type of fanfiction, a common trope is the yandere prince's single - minded devotion to the reader. He will put the reader above all else, including his own kingdom sometimes. The prince may also have a dark side that only the reader gets to see. This can add an element of mystery and danger to the relationship. Another trope is the idea of the reader being an outsider in the prince's world, which makes their relationship even more complex as the prince tries to fit the reader into his life while also keeping them all to himself.
A frequently used trope is 'Injury/Healing'. For example, the reader could get injured and Male Merida takes care of them, which deepens their bond. Also, the 'Fish Out of Water' trope can be seen, like if the reader is from a different world or culture and Male Merida helps them adapt. This creates interesting situations and character dynamics. There's also the 'Love Triangle' trope sometimes, where another character might be vying for the reader's or Male Merida's affection, adding some drama to the story.