Bai Hongan, a 23-year-old convenience store night clerk, was involved in a death game that transcended dimensions on a rainy night. When the black butterfly broke into reality carrying the word "blood", he was forced to become a contestant in the "Eternal Ring" and struggled to survive in countless twisted universes. Each universe is a deadly puzzle full of loopholes in the rules: the residents of the Mirror City feed on shadows, the prisoners of the Time Prison trade memories for probation, the nuns of the Cyber Monastery sell faith in the torrent of data...
His golden finger is a mysterious pocket watch left behind by his mother, but he discovers that there is a warning hidden on the inside of the watch cover that does not belong to this era; he pursues the truth about his sister's disappearance, but encounters different versions of "her" in each universe - some are tyrants who control time, some are hunted memory smugglers, and some are rule breakers bred with his genes.
When the unlimited copy became a reality show controlled by capital, and when resurrection from the dead became an entertainment project voted by the audience, Bai Hongan gradually discovered that he had already been a "variable" that circulated for thousands of years - and the survival of the entire multiverse depended on the 0.1 Second error of the hand of his pocket watch every time he made a choice.
