I'm not sure specifically as there could be various novels related to Dragon Balls. Generally, it might be about the adventures of the characters in the Dragon Ball universe, their battles to collect the Dragon Balls, and the use of the wishes granted by the Dragon Balls. It could also involve the growth of the main characters like Goku in terms of their power and relationships.
The main thing about Dragon Balls in anime is that they give the characters the chance to make their deepest desires come true. However, it's not always as simple as it seems. Sometimes, getting the Dragon Balls and making a wish leads to unexpected consequences and new challenges for the characters.
The main purpose of dragon balls in the anime story is to offer a means of obtaining what's otherwise impossible. However, getting them isn't easy, and there are always rivals and challenges along the way. Also, the wishes granted by the dragon balls aren't always without unexpected outcomes.
The fact that it's a fanfic means the author has a lot of creative freedom. They can create unique relationships between Harry and Namekian characters. For example, Harry could be mentored by a wise Namekian elder, which would add an interesting dynamic to the story. Also, exploring how Harry adapts to the Namekian environment and their way of life could be really engaging.
It might be a story where Percy discovers he has some sort of connection to the Namekians. For example, he could have a hidden Namekian power within him. As he explores this, he teams up with a group of Namekians to defend their planet from an outside threat like a powerful space pirate group.
The following are a few recommended Dragon Ball novels:
1. " The Strongest Myth of Dragon Ball ": This novel is full of blood and adventure. It is a good choice for readers who like Dragon Ball.
2. The Legend of the Dragon Ball: This novel tells the story of the protagonist crossing into the Dragon Ball world, full of danger and blood.
3. " The Dragon Ball: Attack of Latiz ": The protagonist becomes the most tragic male protagonist's brother in history by crossing into the Dragon Ball world, but he is the strongest in the universe.
4. " The Scientific Evolution of All Worlds Starting from the Dragon Ball World ": The protagonist starts from the Dragon Ball World and learns in various worlds. He evolves based on internal strength and understands the laws to achieve eternity.
5. " The Dragon Ball Gate of Rebirth ": The protagonist accidentally transmigrated to the Dragon Ball World and possessed the cultivation and skills of the super god character Goku. He had a variety of exciting battles with classic characters such as Vegeta and Buu.
These novels all had exciting plots and hot-blooded adventures, suitable for readers who liked Dragon Balls.
In the'marvelous dragon balls novel', one of the main characters is likely to be Goku. He is known for his pure heart and his ability to reach new levels of power. Another important character could be Piccolo. He has a complex relationship with Goku and the other characters. And of course, Master Roshi, who is Goku's first martial arts teacher and has a lot of wisdom when it comes to the ways of the martial artist and the secrets of the Dragon Balls.
Vegeta could also be a main character. He starts as a villain but later becomes an important ally. And Bulma might be there too, as she is often involved in the search for the Dragon Balls from the very beginning.
It's likely about the Dragon Balls. Maybe it involves the adventures of the characters in search of the Dragon Balls, the battles they fight using the powers associated with the balls, and the wishes they make when they gather all the balls.