The female protagonist is a cursed spirit who travels to the world of Mingke, and the male protagonist is Kenji. Some of the plots caused by the heroine's inhumanity are quite interesting.
I caught up on a comprehensive comic when it was updated, and it's still impressive to this day. I felt quite desperate after watching it. At least for me, the heroine's road has no end, only an infinite loop (it's been so long that I can't remember if I remember the ending correctly)
Although living is the most important thing for the heroine, if this guide cannot be ended, I would rather the heroine's life can end here.