Chen Tian never thought that a quantum experiment would allow him to travel 80 years into the future.
The earth in 2125 is technologically advanced but perilous. Demons in hell are raging and mankind is on the verge of extinction.
Here, he met Lin Xue, the commander of the Earth Defense Force, a female warrior who was cold on the outside and hot on the inside.
They fought side by side, but discovered during the investigation that the source of the devil was actually his era.
In order to save both worlds, Chen Tian must go back to the past. But what does it mean to change history? Save the world or destroy love?
When the scientist's rationality meets the soldier's determination, when the responsibility of rescue collides with the selfishness of love... Their choices will determine the fate of the entire timeline.
Purpose: Quantum technology travels through future hell and demons to save the earth