Stardust Legacy

The earth's habitability collapsed, and humans were forced to migrate to the stars. The environment of the universe is dangerous, and time travel will erode memory. Every interstellar jump is forgetting oneself. Although individuals are as small as dust, they can use faith as fire, stick to their mission, and light up the return path of the entire civilization. The most extreme romance of science fiction is not to conquer the universe, but to protect civilization itself.