Not having read the 'the healer novel', we can only speculate. The main character is likely the healer. There may be a love interest for the healer, which could add a romantic sub - plot. And there could be an authority figure in the story, like a king or a village elder, who either supports or opposes the healer's actions, creating conflict and driving the story forward.
In some 'healer novels', the main character, the healer, might be a young person who discovers their healing abilities and has to learn to control them. There could be a love interest, perhaps another character with some sort of special ability or knowledge, who gets involved with the healer's story. And there may be an authority figure, like a king or a guild master, who has an impact on the healer's life and actions in the story.
I don't know the exact main characters in the'redo healer novel' as I haven't read it.
Since I don't know the details of this novel, I can't tell you the main characters.
The main character is the healer who gets to redo his life. There are also those who wronged him in his past life, like the cruel nobles or powerful villains who are antagonists in the story.
I don't know for sure as I haven't read it. But I would expect the healer to be one of the main characters. There might also be a mentor figure who teaches the healer or helps them improve their skills.
The main characters could include the black healer's family members. Maybe they play a role in his journey, either supporting him or causing some conflicts. There might also be some fellow healers, some of whom are friends and some who are rivals. These characters would interact with the black healer and contribute to the development of the story.
I'm not entirely sure as I haven't read every detail of the novel, but typically there would be the healer as the main character. There might also be characters who were either friends or foes in the healer's past life that play important roles in the redo scenario.
The main character is Keyaru. He is the healer who gets the power to redo his past and seeks revenge.
The main character is the healer who gets to redo his life. There are also his former oppressors who become his targets in his revenge journey.
Since I haven't read it, I'm not sure. But it could be the healer with the imprint as one of the main characters. There might also be a patient or someone the healer is supposed to protect because of the imprint.