It's a series that involves a protagonist with the ability to redo time. He uses this power to take revenge on those who wronged him in the past. The story is filled with action, adventure, and some dark themes as he navigates through a world full of magic and power struggles.
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.
The 'redo of healer novel' mainly tells the story of a healer who gets a chance to redo his life. He uses his knowledge of healing and new - found abilities to take revenge on those who wronged him in his previous life. He goes through various challenges and battles, gradually growing stronger in the process.
In 'redo of healer light novels', the most prominent character is Keyaru. He's the one with the unique ability to rewind time and his story of transformation from a mistreated healer to a vengeful figure is the main focus. Besides him, there are characters like Bullet, who is involved in some of the power struggles and battles in the story. And then there's Setsuna, who also plays a part in Keyaru's adventures and his pursuit of revenge.
You can try looking on popular manga reading websites like MangaDex or MangaFox. They often have a wide range of manga available, including Redo of Healer.
One reason could be that the original story had plot holes. Maybe the characters' development wasn't clear or there were events that didn't make sense. Another reason might be to change the perspective. For example, if it was originally told from a hero's point of view, redoing it from the villain's perspective could make it more interesting. Also, the initial story might not have had the desired impact on the audience, so a redo can be done to make it more engaging and powerful.