In a special institution hidden deep in the city, the Yin Dong Bureau, it specializes in storing supernatural and abnormal files that cannot be explained by common sense in the world, and records those strange truths that have been forgotten and erased by the world.
After Lin Yan, a new archivist, joined the company, he came into contact with a banned mysterious file and became involved in a series of supernatural events. The anomalies in this world are not as simple as ghosts and demons. There are mysterious enemies called Erasers. Their purpose is to destroy all abnormal files, erase all memories and truths in the past that are not allowed to exist, and make history blank.
Lin Yan and his companions discovered that there is a forbidden fourth-level archives hidden underground in the Yin Dong Bureau, where the prisoners in the mirror are imprisoned, and ancient secrets such as the "Phase Core" and the "Zhenjie Emblem" (the fragment of the Wanxiang Furnace) are circulated. The Prisoner in the Mirror once sealed the rift at his own expense, leaving behind clues to fight against the Eraser.
A group of people go deep into the alien space between the rules, looking for the power to compete with the enemy. They experienced fierce battles along the way, and some of their companions died for them. The villain Shen Linyuan carries a twisted belief that destroying all anomalies will end suffering, and insists on erasing all files and resetting the world.
When the final battle comes to the real world, Lin Yan sticks to the original intention of the Yin Dynasty: not to eradicate arbitrarily, nor to condone disasters, but to faithfully record all the truth. He used the power of the fragments of the Wanxiang Furnace to fight against Shen Linyuan and prevent the disaster of the world being completely emptied.
The war ended and the crisis temporarily subsided, but the deeper hidden dangers have not been eradicated. The torn world cracks are still undercurrents, and new threats have quietly awakened in the shadows.
