One common theme is family and clan loyalty. Since the Hyuga clan has a strong sense of family structure and loyalty in the Naruto universe, many OCs in these fanfictions deal with issues related to that. For example, they might struggle between following the traditional clan ways or forging their own path.
Another common theme is the exploration of the Byakugan and the Hyuga's unique abilities. OCs often have different levels of control or unique applications of the Byakugan. This can lead to stories where the OC discovers new powers or uses existing ones in unexpected ways. Also, discrimination within the clan against those with different Byakugan abilities or those who are different in general is a theme. The OC usually has to face this discrimination and try to overcome it. It adds a layer of conflict and character development to the story.
In 'naruto hyuga harem fanfiction', a frequently seen theme is the integration of the Naruto world's ninja elements into the harem story. This means things like missions, training, and battles can be intertwined with the development of the harem relationships. Another common theme is the discovery of self - identity. The main character often has to figure out who they are in relation to the Hyuga clan and their multiple love interests. And of course, the theme of friendship within the harem, as the characters support each other through various challenges.
One common theme is the exploration of the Hyuga clan's powers. Since the Byakugan is such a unique ability, many fanfictions focus on how it can be developed further or used in different ways.
One common theme is the breaking of social barriers. Since Neji is from the Hyuga clan which has its own set of traditions and hierarchies, often the OC will come from a different background and they have to overcome the differences in their social standings to be together. For example, if the OC is a commoner or from a different village.
The theme of family also appears often. As they start their own family, fanfics may focus on how they raise their children, pass on their values, and how their family interacts with the rest of the Hidden Leaf Village. There are fanfics that show Naruto and Hinata teaching their kids about the importance of hard work, friendship, and loyalty, just as they learned in their own lives.
One common theme is Hinata's growth. Fanfictions often explore how she develops as a ninja, both in terms of her physical abilities and her mental strength. Another theme is her relationships, especially her relationship with Naruto. Many fanfictions build on their relationship, showing different scenarios of how they interact and support each other.
One common theme is self - discovery. The oc often has to figure out their place in the Naruto world, their abilities, and their purpose. Another theme is friendship. Just like in the original Naruto series, the oc forms bonds with other characters, whether it's with Naruto and his friends or other original characters. Also, power - seeking is a theme. The oc may strive to become stronger, either to protect themselves or to achieve a certain goal in the ninja world.
One common theme is identity. Since fem Harry is in a completely different world as a Hyuga, she has to figure out who she is in this new context. Another theme is acceptance. She has to be accepted by the Hyuga clan, and also accept the new rules and ways of the clan herself.
One common theme is the anticipation of new life. Hinata is often shown as excited and nervous about becoming a mother, like in many fanfics where she spends time daydreaming about what her baby will be like.
Family is a very common theme. Since she's from the Hyuga clan, stories often explore her relationship with her parents and siblings. For example, how her father's expectations influence her as a baby.
One common theme is the outsider status. Since the OC is a feline in a mostly human - dominated ninja world, they often feel like an outsider. This theme of not quite fitting in but still finding a place is very prevalent.