A common character type is the outcast. This person has been shunned by society because of their connection to blood magic. They might be on a journey to prove that blood magic can be used for good. Along the way, they meet other characters, some who join them in their quest, while others try to stop them out of fear or jealousy.
Typical characters include power - hungry mages. They are the ones who are most likely to abuse magic for their own gain. There are also often innocent bystanders who are affected by the abuse of magic. And sometimes, there will be a hero or heroine who tries to stop the abuse of magic.
In such a novel, you'll find the protagonist mage, who is on a journey of growth. There are also sidekick characters, who might not be as powerful but are very loyal. The antagonists can be other mages who have different goals or are jealous of the main character. And don't forget the mysterious old mage who might hold the key to some ancient magic or secrets within the academy.
As I'm not familiar with this specific novel, it's hard to determine the main characters. But in a story about a blood god, there could be a character who has a special connection to the god, perhaps a chosen one. There may also be a wise old mentor - type character who tries to guide others away from the blood god's influence. And of course, there could be a villainous figure who is a devout follower of the blood god and enforces its will.
There are often young protagonists. They are usually on a journey of self - discovery and the magic transformations are part of their growth. For example, a young wizard who discovers his ability to transform and uses it to overcome challenges.
The main character would be the mage, of course. There would also likely be teachers in the academy, who are more experienced mages and teach the protagonist magic.
Typical characters in this kind of light novel would be the novice mage at the center of the story. The instructors are important characters as they guide the mage's learning. There are often bully - type characters among the students who create conflict. And don't forget the mysterious old mage who might have some hidden knowledge or secrets related to the academy or a particular magic. These characters together create a rich and dynamic world within the magic academy.
I don't know the main characters as I haven't read the book. But they could be people who are directly cursed, like a young protagonist who has to figure out how to deal with the blood curse.
In a typical romantic novel, you'll find the hero, who is often confident and dashing. He has a way with words and actions that makes the heroine fall for him. The heroine, on the other hand, is usually a complex character with her own dreams and goals. She's not just a damsel in distress. There are also side characters like the nosy neighbor who might spread rumors or the matchmaker type who tries to bring the two main characters together.
There might be a young hero or heroine. They could be on a quest to either find the blood crown or to keep it safe from the wrong hands. There could also be an evil sorcerer or warlord who wants to possess the blood crown for its power.
Captain Blood himself is the main character. He is a brave and resourceful man.