I don't like the eighth world and the twelfth world, but for the seventh, tenth and eleventh worlds, this article deserves a five-star rating, especially the eleventh Godless Land www. No spoilers, just read it. Really, this world can be read over and over again.
The heroine is an artificial intelligence who is raised by the mastermind to become self-aware and then thrown into the upside-down world. Then she builds up the story of the underworld and reincarnation step by step. The writing is quite creative and the writing is very good, but the ending is very fast. I can read it again if I have a chance in the future.
