A common theme is cultural differences due to their clan backgrounds. Also, there's often the theme of love against all odds. Since in the original series they don't end up together, fanfiction writers like to show how they can overcome the odds and build a loving marriage. There can also be themes related to protecting their new family and dealing with threats from the outside world.
One common theme is the adjustment period. They come from different backgrounds, so stories often focus on how they adapt to living together. Another theme could be family acceptance, especially considering Sasuke's complex past.
One common theme is redemption. Sasuke often needs to find his way back to the good side, and Hinata can be a part of that journey, like in many stories where her kindness helps him. Another theme is growth. Both characters grow as individuals and in their relationship. For example, Hinata might become more confident in the presence of Sasuke, and Sasuke might learn to open up more.
Another common theme is the support system. Fanfictions usually show how Hinata's friends and family support her in her married life. This could be through advice, or just being there during tough times.
Many Sasuke married fanfictions explore the theme of family. This could involve having children, dealing with in - laws, or even just the concept of creating a new family unit with his partner. It's interesting to see how different authors write about Sasuke's role as a family member. Also, the theme of love and loyalty is often present. How Sasuke shows his love for his partner and remains loyal despite his past temptations or external threats.
Often, there's the theme of the unexpected. Since Sasuke was mainly associated with Sakura in the original story, the idea of him falling for Hinata is unexpected. Also, the theme of self - discovery is present. As Sasuke falls for Hinata, he discovers new aspects of himself and his ability to love and be loved. There may also be themes related to family acceptance, as they come from different clans.
The theme of transformation is also quite common. Sasuke's vampire state may lead to Hinata changing in some ways, perhaps becoming more confident or learning to fight better to be at his side. And vice versa, Sasuke might transform his view of the world and his place in it because of Hinata. There's also the mystery theme, as vampire lore usually brings an air of mystery to the story.
One common theme is the forbidden love aspect. Since Sasuke and Hinata are from different clans in the Naruto universe, adding the vampire element makes it even more complex and forbidden. Another theme could be the power struggle. If Sasuke is a vampire, he might have powers that are difficult to control, and Hinata could be the one to help him. Or vice versa.
One common theme is the exploration of a relationship that was not in the original Naruto story. It often involves Sasuke breaking away from his usual aloofness towards Hinata. Another theme could be Hinata's growth in confidence as she is loved by Sasuke.
Love and support are also big themes. In these fanfictions, Neji is usually very supportive of Hinata's decisions, like if she wants to take on a dangerous mission or start a new project in the village. And Hinata is always there for Neji, giving him emotional strength. For example, in some stories, when Neji has doubts about his role in the clan after marriage, Hinata helps him see his importance.
One common theme is family. Since they are married, many fanfictions explore how they start a family, raise children, and pass on their values. For example, Naruto teaching his kids ninjutsu skills he learned.