Library

In an inconspicuous house on the earth, a fifteen or sixteen year old boy was doing an experiment. With a flash of green light, a cup of green viscous liquid was formed. A man in black walked out and said: "It seems you have discovered something. I originally thought that there would be at most one low-level planet like Earth...

In the future world, several old dormitory friends discovered on their dimensional journey that the lower the dimension, the higher the technology, but the material level is the opposite. One person's rebellion in the middle caused the first dimensional war