What are the common themes in osomatsu san x reader fanfiction?

Sure. One great place to find osomatsu san x reader fanfiction is Archive of Our Own (AO3). There are various stories there with different themes and plotlines. Some might focus on a romantic relationship between the main character and the reader, while others could be more platonic adventures. You can search by tags like 'osomatsu san' and 'x reader' to narrow down your options.

A common theme is brotherly love. Their relationship as brothers is often explored in different ways, whether it's a deep, emotional bond or a more light - hearted, teasing kind of love.

One popular theme is the brothers' daily misadventures. Since the Osomatsu San characters are known for getting into all sorts of comical situations in the original work, this often extends to fanfiction. Another theme could be their relationships, not just among themselves but also with other characters they might interact with in the fan - created scenarios. For example, how they deal with new neighbors or strangers in their neighborhood. And of course, there are also fanfictions that explore their dreams and fantasies, like what if they were in a different world or had different superpowers.

One common theme is friendship. Since they are brothers, a lot of fanfics explore the deep bond of their friendship. Another theme could be growth, showing how they grow together and influence each other.

How about a crossover with 'Gintama'? Both shows have a great sense of humor. The Osomatsu brothers could find themselves in Edo and get involved in Gintoki's crazy adventures. They might even try to open their own Odd Jobs business, but with their own twist. Or a crossover with a magical girl anime. The brothers could be turned into magical boys by accident and have to save the world while still being their lazy, goofy selves.

A sense of belonging is another big theme. The reader, who may feel like an outsider in the real world, finds a place where they belong among the mutants. There are also themes related to fighting for justice, just like the X - Men do in the original stories.

One common theme is adventure. Since Chekov is part of the Star Trek universe, many fanfictions involve the reader going on adventures with him through space, exploring new planets and facing various challenges.

Love and sacrifice are also very common. The reader might fall in love with Vergil and be willing to sacrifice for him, or vice versa. In some fanfictions, there is also the theme of discovery. The reader discovers new sides of Vergil that no one else has seen, which deepens their relationship.

One common theme is adventure. Since boboiboy is often involved in battles and saving the world, the reader character gets to be part of those exciting adventures in the fanfiction.

One common theme is growth. Both Armin and the reader often grow as individuals while their relationship also evolves. For example, they might learn to be braver in the face of danger.