I am giving this three stars, which in my rating system doesn't mean it's awful. It means it wasn't for me, but I see the merit in the story that may appeal to others.
For me, I think this story is barely an Isekai of the otome subgenre. I think it would make more sense if she just had visions or maybe found her grandmother's "secret book of visions" and used that to inform her choices and used white magic to do the resetting.
That being said, there are some good moments in this. I wish the side characters outside of Lui (who receives a lot of screen time and I love her) got more time devoted to development.
One thing I can vouch for in this story is that it is not slow paced when it comes to the romance. It is also just one love interest, which I believe may be appealing to some who are interested in this sort of fantasy story.