There was a sudden abnormal noise in the laboratory, and Yi Cheng, a researcher in the Department of Physics, fell into Chang'an in the third year of Xianheng. As soon as he landed, he encountered a life-and-death crisis when the lantern exploded. When he was about to die, he accidentally triggered the golden finger - time rewind, but it could only go back 1 minute in the initial stage. It was only through trial and error that he figured out the rule of "three times a day, the more you use it, the longer it will be."
After accidentally rescuing the daughter of the head of the household department, he went from being a refugee in a ruined temple to being a guest of the government. However, he was involved in a series of disappearances of officials and their families. He was even more shocked to find that the gangster leader had the same name as him, "Yi Cheng". While investigating with his badge, he found that the clues pointed directly to the "Red Crystal", a tribute from the Western Regions, and its description was exactly the same as the time crystal debugged before traveling.
Following the clues to Zuixian Tower, Yicheng met "himself" wearing a curtain hat - Yicheng, a native of the Tang Dynasty, the guardian of the time crystal. The other party informed that the immortal predicted that he would be the successor three hundred years ago, and that the crystal was stolen by thieves from the Western Regions three months ago. The thieves tried to use the crystal to open a rift in time and space to tamper with history. At that time, the Qinglong Temple pagoda was the place for trading.
From 1 minute to 10 minutes, Yicheng's backtracking ability transformed in actual combat. In the decisive battle at the pagoda, he narrowly won through his proficiency, but when the crystal shattered he faced a choice: return to modern times, or defend Chang'an? Looking at the fireworks and lanterns on Zhuque Street, he held half of the warm crystal tightly: "I'll stay."
After the disappearance case was solved, Yi Cheng became a non-staff consultant to the government, using his retrospective ability to protect the peace of the city. When Yicheng of the Tang Dynasty handed over a wine glass and mentioned the unusual events in the Western Regions, he raised his glass and chuckled - the fantasy guardianship journey of Chang'an has just begun.
