One common theme is the adjustment of relationships. When a character gets pregnant, it forces everyone around them to re - evaluate their relationships. For example, the relationship between the pregnant character and their partner might become more complex, with added responsibilities and new levels of intimacy.
The theme of protection is also prevalent. In the Inuyasha universe, which is full of danger, the pregnancy makes the need for protection even greater. Characters often rally around the pregnant one to keep her and the unborn child safe from demons and other threats.
One common theme is the struggle for acceptance. The OC being pregnant might face judgment from the characters in the Inuyasha universe. Another theme could be protection. Since she's pregnant, she needs to be protected from various threats. And there's often the theme of love. Whether it's the love for the unborn child or the love of the people around her who support her during this time.
One common theme is their relationship development. Since their relationship in the original series had its ups and downs, fanfics often explore how they grow closer and overcome more obstacles. Another theme is adventure. Many fanfics continue the spirit of the anime and send them on new adventures in the feudal era.
One common theme is the clash of different cultures. Since Inuyasha is set in a feudal Japanese - like world, when it crosses over with other universes, like a modern - day or a different fantasy world, there's always this interesting cultural exchange. For instance, when crossed with a Western - based fantasy world, the differences in magic systems, social hierarchies, and values become a major part of the story.
One common theme is their relationship development. Writers often focus on how Inuyasha and Kagome overcome their differences and grow closer. Another theme is adventure. Since the original series was full of it, fanfics continue with new quests and battles.
Love is a common theme. Often, it's about a female character falling in love with Inuyasha or vice versa. Another theme is adventure. The female character might go on adventures with Inuyasha. Friendship can also be a theme, like when the female character forms a strong bond with Inuyasha and his friends.
Themes like growth are common. Inuyasha grows as a person because of Kagome's influence, and vice versa. Kagome becomes more confident and strong in the face of danger. Another theme is acceptance. Inuyasha has to accept Kagome's modern - day ideas, and Kagome has to accept Inuyasha's half - demon nature. Also, the theme of adventure is prevalent. Since they are in a world full of demons and magic, they often go on adventures together, and this is a big part of many 'inuyasha x kagome fanfic'. It adds excitement and action to their relationship story.
One common theme is the clash of different power systems. The Force in Star Wars and the various spiritual and demonic powers in Inuyasha often collide in fanfics. Another theme could be the exploration of different cultures. Star Wars has its own galactic culture, while Inuyasha is set in a feudal Japanese - inspired world. Fanfic writers often play with how these two cultures interact.
Another theme is sacrifice. Often in these fanfics, either Inuyasha or Sango has to sacrifice something for the other's sake. For example, Sango might sacrifice her safety to protect Inuyasha. This shows the depth of their connection.
One common theme is the power struggle. Since both Naruto and Inuyasha are powerful in their own right, in a harem fanfic, they often have to deal with other powerful female characters, which leads to power dynamics and struggles. Another theme is friendship. Despite the harem aspect, the bond between Naruto and Inuyasha usually remains strong and they support each other. Also, love triangles or more complex relationship webs are common as multiple female characters are involved with Naruto and Inuyasha.
One common theme is power comparison. Fans often like to see how the powerful swords in Inuyasha, like Tessaiga, compare to the zanpakuto in Bleach. Another theme is character interaction. It's interesting to see how the brash Inuyasha would interact with the determined Ichigo. Also, the exploration of different worlds is a theme. The feudal - era - like world of Inuyasha and the complex Soul Society in Bleach offer a lot of room for exploration when the characters cross over.