The protagonist, Dai Xiaochao, is a college student who graduated from architecture in the 1990s. Due to high financial pressure, he lives in a Tongzi building where a secret room murder occurred two years ago. Due to the lack of surveillance at that time, everything was planned by the police, and the case progressed slowly. At this time, Dai Xiaochao, who lived in Tongzilou, began to react to the family's ancient Taotie jade and the Taotie pattern on his body. . . The story begins here.
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