I haven't read 'Once Again into the Light Alone' cover-to-cover, but I pieced together the premise from reviews and community posts because the title kept popping up. From what I gathered, it’s a regression fantasy where the protagonist, a hero or royalty who saved the world, gets betrayed and executed by the very people she trusted. She wakes up decades in the past, back in her youth, with all her memories intact.
The central drive isn't about seeking revenge in a bloody way, at least not from the descriptions I've seen. It's more a melancholic, determined walk away from the pedestal everyone put her on. She's opting out of the grand narrative this time, refusing to be the sacrificial lamb for an ungrateful kingdom. The 'light alone' part of the title seems to refer to her choosing a solitary, quiet path, focusing on personal healing and maybe some subtle, behind-the-scenes maneuvering to prevent the worst future events without becoming the figurehead again. It sounds like a quieter, more introspective take on the regression trope, focusing on emotional exhaustion rather than power fantasy.