Ji Qingyuan is a "time and space ferryman" who specializes in entering the small world of collapse to repair the causal lines distorted by obsession. The price is that every time he completes a task, a piece of emotional memory related to the task will be stripped away. She is cold and transparent, and never believes in false bonds, but she frequently encounters the mysterious "time and space monitor" Shen Yanci during her travels. Sometimes he comes to her rescue and sometimes he confronts her. His identity remains a mystery and his attitude is ambiguous. From ancient machinations to interstellar exile, from sadomasochism to survival in the apocalypse, behind the cause and effect of each world, there are secrets that transcend time and space - they were originally ancient gods, and their souls were separated and exiled in time and space because they changed their fate against the will of heaven. The so-called "mission" is nothing but a torture set by heaven to keep them reunited but unable to stay together. When the last memory was stripped away, Ji Qingyuan looked at the familiar yet unfamiliar Shen Yanci in front of him, leaving only a blank space: "Do we... Know each other?" And he held the broken soul piece in his hand, and his eyes were filled with endless desolation.
