The main characters in 'Code Girls Stories' are likely to be those female coders who had remarkable experiences in the coding world. They could be from different backgrounds but all had a passion for coding and made their mark in the field.
By showing real - life examples. When girls see others like them succeed in coding, they are more likely to believe they can do it too.
In Code Geass Lost Stories, the main characters are many. Lelouch Lamperouge is a central figure. His Geass power and his quest for revenge against Britannia drive much of the story. C.C., the immortal witch, is crucial as she has a deep connection with Lelouch. Suzaku Kururugi, with his strong sense of justice and his skills as a Knightmare Frame pilot, plays a significant role. There are also other characters like Kallen Stadtfeld, a rebel who fights against Britannia and has her own story arc within the game's narrative.
Since I don't know the exact 'Cadiz girls stories', it's hard to say. But likely the main characters would be the girls from Cadiz themselves.
Well, the Journey Girls like Callie, Kelsey, and Meredith are often the main characters. Callie might be the adventurous one, always ready to explore new places. Kelsey could be the more artistic type, seeing beauty in everything around her. Meredith might be the brainy girl, solving problems and coming up with great ideas in the stories.
Well, in addition to those, Sunset Shimmer is a very important character. She has a complex backstory, starting as a bit of a villain but then evolving into a more positive figure. Applejack is another main character, representing honesty and hard work. These characters each bring their own personalities and abilities to the stories, and their interactions are what make the Equestria Girls Stories so interesting.
I'm not sure who the main characters are exactly. But as the title suggests, grandpa is likely to be a main character. There might also be his opponents in the duels, perhaps other coders or digital entities.
Typically, the main characters are the Code Talkers themselves. They are the ones with the special skills of using their native languages for military communication.
I don't have enough information to tell who the main characters in 'code red novel' are. There could be a brave hero or heroine trying to deal with the 'code red' situation.
Since I don't know the specific 'the secret code novel', I can't say for sure. But usually in this kind of novel, there might be a brilliant codebreaker, someone who is really good at solving puzzles and deciphering codes.
I'm not sure specifically as I haven't read it, but it could be a code - breaker, a spy, or a person in a position of power.