There's no way to know for sure who the main characters are without reading the 'super cube light novel'. However, common character types in such stories could include a curious and brave protagonist who is drawn to the super cube. There might be an antagonist who wants the cube for evil purposes. And there could be supporting characters like a scientist who tries to analyze the cube or a warrior who protects the protagonist during their journey with the super cube.
I don't have enough information to say who the main characters are. It could be a young hero or heroine who discovers the super cube.
A 'super cube light novel' could potentially be about a cube that has extraordinary properties. It could be set in a sci - fi or fantasy realm. For example, the cube might be a key to unlocking different dimensions or it could hold some sort of magical energy that the protagonist has to discover and use. It might also involve a mystery surrounding the origin and purpose of the super cube.
I'm not sure specifically as I haven't read it. But it could be a young protagonist with a special ability related to super evolution.
There could be a protagonist who is a super soldier with extraordinary abilities. He or she might be leading the charge against the antagonists.
Gohan and Piccolo are also very likely to be main characters. In the related movie, they had important roles, so in the light novel, they should be prominently featured as well. They both have unique powers and personalities that contribute a lot to the story. Gohan is a half - Saiyan with great potential, and Piccolo is a Namekian with his own set of skills like regeneration and powerful energy attacks.
Goku is surely one of the main characters. He is the protagonist in most of the Dragon Ball series, and in the light novel, he would continue to be a central figure in the story, with his never - ending pursuit of getting stronger.
There's also Gohan, who has great potential as a half - Saiyan. He often has to balance his human side and his Saiyan heritage. And then there's Piccolo, who, although not a Saiyan, plays an important role in the story, often helping the saiyans in their battles.
Maybe there are new characters introduced specifically because of the cube. These characters could be from a different realm or have special knowledge about the cube, and they interact with the Twilight characters in unexpected ways. So the main characters might include these new additions along with the original Twilight cast.
In these types of light novels, the main character is usually an ordinary person at the start. But with the discovery of the super system, they become extraordinary. They might be joined by a group of misfits, each with their own skills and personalities. Some could be tech - savvy, others strong fighters. The antagonists can range from other humans who have turned to evil in the face of the apocalypse to strange and powerful creatures born from the post - apocalyptic world. These characters interact and create a complex web of relationships within the story.
In the 'Broly the Legendary Super Saiyan Light Novel', Broly is the central figure. He has a complex personality shaped by his past. Goku, the protagonist of the Dragon Ball series, is another important character. His different upbringing compared to Broly and his own journey to power make their interactions interesting. Vegeta, the proud Saiyan prince, is also there. His pride and his own power - seeking journey collide with Broly's story, especially when they face off in battles.
Obviously, Broly is one of the main characters. He is a very powerful Saiyan with a unique backstory. Goku and Vegeta are also likely to be main characters as they are central to the Dragon Ball Super story and would surely interact with Broly in the novel.