I didn't understand the content very well as I read little by little, but after reading up to Chapter 6, I realized. She is stuck in a time loop. After a day has passed, she finds herself trapped in a time when all the bad events of that day are recreated. Throughout this book, she often references Greek and Roman myths, the legend of Troy, and so on. Quoting the story of Prometheus at the end means she identifies herself as Prometheus now. The book gets more interesting as it progresses. Her rich expressiveness is appealing. I still don't like her personality, but she may become more likable towards the end of the book. With the chapter that slightly reveals her efforts to break the time loop, my reading for today is also complete!