The idea of the cat as a protector is also a theme. In some 'the love of a cat fanfiction', the cat senses danger before the human does and takes actions to keep the human safe. This could be as simple as warning the human of a stranger approaching or something more complex like protecting them from a supernatural threat.
One common theme is friendship. Since they are friends in the original show, a lot of fanfiction focuses on strengthening or testing that friendship. For example, they might have to face a big misunderstanding that challenges their bond.
A third common theme is the idea of the underdog. Naruto was an underdog in his own ninja world, and the cat is often portrayed as an underdog as well. Together, they overcome challenges and prove that even the smallest or most overlooked can achieve great things. For instance, the cat might be a runt that Naruto helps to become strong, and in turn, the cat helps Naruto in unexpected ways.
One common theme is adventure. Female cats are often depicted as going on exciting journeys, exploring new places, and facing various challenges. For example, they might climb a big tree to find a hidden nest or cross a stream to reach an unknown meadow.
One common theme is mystery. Since Shiki is a black cat, which often has connotations of mystery in many cultures, fanfictions tend to play on that. Another theme is adventure, as the idea of a cat going on exciting journeys is quite appealing.
Adventure is also a big theme. Many fanfictions send them on wild adventures, like exploring a haunted house or going on a treasure hunt. This allows for a lot of action and excitement in the stories.
One common theme is identity. Since the Cheshire cat is now in human form, he has to figure out who he is in this new state. Another theme is the clash between his feline nature and human society. For example, in some fanfictions, his cat - like instincts of being sneaky or his love for high places cause problems in a human world.
One common theme could be mystery. Since black cats are often associated with mystery in many cultures, fanfictions might play on that. Another could be adventure, with the black cat character going on various quests or facing challenges.
One common theme is identity. When Hermione is transformed into a cat, she has to re - evaluate who she is. Another theme is the exploration of the wizarding world from a different perspective. As a cat, she experiences things in a new way.
One common theme is transformation. The black cat might transform into a human - like form or a more powerful creature within the Naruto universe. This allows for interesting interactions with the Naruto characters.
Often, there is a theme of protection. The Akatsuki members, despite their own agendas, come together to protect the cat from outside threats. This could be related to their sense of loyalty, even if it's towards a small, furry creature rather than just their own group goals.