I'm not entirely sure without reading the specific novel in detail, but typically there would be a protagonist who is at the center of the story. There might also be an antagonist who opposes the protagonist's goals or values.
In many novels with such a title, there is often a complex hero. This hero may have a past that is intertwined with the scarlet and the black elements. There could be a mentor - like figure who guides the hero at times. Additionally, there may be villains who are directly or indirectly related to the opposing forces of the scarlet and the black, and their actions drive the plot forward by creating obstacles for the main characters.
The main characters are Hester Prynne, a woman who is forced to wear the scarlet letter 'A' for adultery. Then there is Arthur Dimmesdale, a minister who has a secret relationship with Hester. Roger Chillingworth, Hester's husband, is also a main character. He is consumed by revenge after finding out about Hester's affair.
The two main characters are Sherlock Holmes and Dr. Watson. Holmes is the brilliant detective with extraordinary deductive powers, and Watson is his loyal friend and assistant who often documents their adventures.
The female lead is one of the main characters. She is usually the one who travels through time and gets involved in the court affairs.
I'm not entirely sure about all the main characters in the 'Scarlet Nexus' light novel specifically, but generally, there are characters with strong psychic abilities who are likely to be the main focus.
The protagonist is Pino Lella. He is a young Italian boy who experiences a great deal during the war and has to grow up quickly.
I'm not sure exactly without more specific information about this particular 'scarlet heart chinese novel', but often there could be a female lead who is caught in the web of court life.
In Scarlet Nexus Visual Novel, there are likely characters who are leaders in the world of psychic powers. They could be in charge of groups or organizations. There may also be a character who is an outcast, having unique powers that others don't understand. And of course, there would probably be a character who serves as the moral compass, guiding others in the right direction when it comes to using their powers.
The main character is a modern - day girl who travels back in time. There are also several princes in the Goryeo Dynasty who are important characters.
There could also be antagonists in the story. These characters would oppose the protagonist and create conflict. They might represent the forces of oppression or the chaos that the protagonist is trying to overcome, whether it's an individual or a group within the setting of the novel.
Well, of course, Hester Prynne stands out as a main character. She is strong - having to face the whole town's judgment while raising her daughter. Arthur Dimmesdale, the conflicted minister, is also a main character. His relationship with Hester and his own internal turmoil is a major plot point. And Roger Chillingworth, whose actions are driven by his jealousy and need for revenge against the man who had an affair with his wife.