Su Ling accidentally bound to the system mall. In order to find the black hole and return to the past, she used the mall materials to open shops and factories, conduct scientific and technological research, and find the secret of returning home.
The deeper you go, the more you discover that the world is not that simple. The appearance of the Earth-centered people disrupts Su Ling's footsteps, and humans and the Earth-centered people fall into an endless war.
Su Ling was forced to get involved in the situation, while conducting scientific research, and finally developed the technology to melt the glaciers. Sunlight shone into the earth, humans returned to life on land, and the people in the center of the earth returned to their own underground to continue living.
And black holes still appear...
Intention: Technology changes the world, and humans fight against nature.