Classmates from 1989 to 1989 traveled to the earth 30,000 years in the future.
On the earth at this time, a group of racial civilizations called Babel took the place of humans. As for the human animal, it was already a mythical beast in the myths and legends of the Babel tribe, and there were no domesticated ones in the wild.
This is nothing originally. We are educated and know how to survive, but it is different when we are caught in a zoo. This is intolerable.
Fortunately, a "ball" system appeared with no instructions, no appearance, and no manufacturer. Gradually, he gradually understood it and discovered that this ball contained the scientific and technological wisdom and productivity of the entire human civilization. The prerequisite was that you had to slowly activate it.
Ever since, one man's battle against the entire civilization has begun.
