Professor Shen Huaijin of the Department of History worked overtime until early morning on her birthday. She died suddenly on the way home while walking out of the office building alone, and her consciousness fell into endless darkness. When he woke up again, he found that he had traveled through time and became a down-and-out scholar in Qinghe County, Qingzhou Prefecture of the Dasheng Dynasty. The dilapidated house is leaking, and the clothes are made of coarse linen. Before he could figure out this absurd situation, there was a violent banging on the door.
