Love and connection are perhaps the most prominent themes. The stories usually explore the unique connection between a human (the reader) and the female Lucario. It can be a platonic love at first, but often evolves into a deeper, more romantic kind of love. There are also themes related to the Lucario's unique abilities and how they are used to protect or help the reader in different situations.
A common theme is friendship. The male trainer and Lucario form a strong bond that helps them through various challenges. Another theme could be growth, both for the trainer in terms of becoming a better Pokémon trainer and for Lucario in evolving its skills.
One common theme is the adventure aspect. The female Lucario might go on a journey, facing various challenges and making new friends along the way, much like in the main Pokemon games.
Power dynamics is also a common theme. Since Ainz is a very powerful character, how the female reader relates to his power, whether she is in awe, challenges it, or tries to equal it in some way, is often explored. Also, the theme of discovery can be seen. The female reader may be discovering the new world that Ainz rules, and their relationship unfolds during this process of discovery. This can include cultural differences, magical elements, and more.
One common theme is growth. Both Deku and the female reader often grow as characters, whether it's in their heroic abilities or in their emotional maturity. Another theme is support. They usually support each other through tough times, like during battles or when facing personal issues at school. And of course, love or at least a strong friendship is a common theme. It's about how they come to care for each other deeply.
One common theme is adventure. They might go on a journey together through the Pokémon world, facing various challenges. Another is friendship evolving into something more. The bond between Ash and the female Lucario grows deeper over time.
A common theme is friendship that evolves into something more. The human and female Lucario start off as comrades in some adventure or task within the Pokémon world, and over time, their bond deepens romantically.
Some fanfics might explore the idea of power dynamics. Given that Corrin may have certain powers in her original context, how she and the male reader interact in terms of power - like who protects whom, or how they combine their strengths - can be an interesting theme. There can also be a theme of self - discovery. As the male reader gets involved with Corrin, he may discover new aspects of himself, his abilities, or his place in the world of the story.
One of the main themes is the discovery of self. The male reader often discovers new things about himself while interacting with female Link. Also, the theme of heroism is quite common. Both characters might show heroic traits in different situations, like saving each other or the world they are in. There are also themes of loyalty and trust, as they need to rely on each other during their adventures. These themes work together to create an interesting and engaging story.
One common theme is adventure. Since the Guardians of the Galaxy are all about space - faring adventures, these fanfics often involve the male reader joining the female characters on exciting quests across the galaxy. Another theme is friendship - turned - love. The male reader starts off as a friend or an acquaintance to the female GotG members and then gradually falls in love with one of them.
One common theme is adventure. Since Ash is often on a Pokémon - collecting journey, the male reader gets to be part of that adventure. They explore new regions, encounter different Pokémon species, and face various challenges together.