Well, themes of heritage and destiny are likely to be present. Naruto's newfound status as a prince of the sea is probably related to his heritage. His destiny now seems to be tied to the sea kingdom. Also, themes of loyalty could be explored. Naruto's friends' loyalty to him as he embarks on this new journey, and his loyalty to his new subjects in the sea kingdom. And there could be a theme of environmental protection, as Naruto may need to protect the sea environment that his kingdom depends on.
Power and responsibility could be a big theme. As a prince, Naruto has power over the sea kingdom but also the responsibility to protect it. There may also be a theme of acceptance, as the sea people might not immediately accept Naruto as their prince. And there could be a theme of adventure, as Naruto explores his new underwater world filled with strange creatures and hidden secrets.
One possible popular theme could be self - discovery. Since Naruto is finding out he's a prince of the sea, he has to learn about his new identity. Another theme might be friendship. His friends from the ninja world could support him in his new role.
I'm not sure specifically what that particular 'naruto prince of the sea fanfiction' is about as there could be many different interpretations. It might be a story where Naruto has some sort of connection to the sea, perhaps he is a prince of a sea - dwelling kingdom in this fan - created story. It could involve new adventures, powers related to the sea, and interactions with sea - based characters.
One popular theme is competition. Combining the competitive nature of tennis from Prince of Tennis with the battles in Naruto. Another is friendship, as characters from both series form new bonds.
A common theme is the mentor - student relationship. Since Minato was Naruto's father in the original, in the fanfiction with Female Minato, she could take on a mentoring role, guiding Naruto in his ninja skills and also in understanding his family history.
One popular theme could be power and its consequences. Since Naruto is a supreme king, how he uses his power and how it affects him and those around him might be explored.
Since Naruto and Demeter are from very different fictional universes, a common theme could be the clash of their different worlds. Maybe Demeter, with her connection to nature, tries to understand Naruto's shinobi world. Another theme could be a friendship that develops into something more, with the challenges that come from their different backgrounds.
Themes of loyalty and betrayal could also be present. There could be a situation where members of the army are betrayed by their leaders, and this leads to the rise of the 'army killer'. Or it could be that the 'army killer' has to deal with their own loyalty issues, such as whether to side with the village or go against the army for a greater good. Additionally, the theme of friendship could play a role, like if the 'army killer' has friends who help them in their mission.
One possible theme could be the struggle against inner demons, as the fury might represent the characters' internal struggles. Another could be the power of unity in the face of overwhelming fury.
Again, steering clear of lemon - related content. In normal 'Naruto is a teacher' fanfictions, another theme could be Naruto teaching about the different types of chakra and how to master them. He could have individual training sessions with students who are having trouble controlling their chakra, like how he had to learn to control the Nine - Tails' chakra. This would not only help the students in their ninja skills but also in their self - discovery and growth.
Well, a common theme is discovery. In many Naruto Sea King fanfictions, Naruto discovers a whole new world related to the sea. It could be an underwater civilization or a hidden power source. Also, friendship is a theme. He might make friends with sea creatures or other characters who are also involved in the sea - related plot. There's also the theme of transformation. Naruto's character may change as he adapts to his new sea - related circumstances, becoming more in tune with the sea and its ways.
Another theme could be the development of their relationship. The mpreg could be a catalyst for them to grow closer and understand each other on a deeper level. For instance, they start to communicate more openly about their feelings and fears. Kiba might open up about his insecurities regarding his role as a father, and Naruto might share his dreams for their future family.