One winter in the 1980s, many Hongqi cars appeared in Beijing, bringing some children with outstanding architectural talents into the Badain Jaran Desert, and these children never appeared again in the next 30 years. 1900 The ancient architectural design drawings many years ago are very similar to an industrial ruin in Badain Jaran. During the investigation of the ruins, someone found the names of the missing children. In the desert in the 1980s, the legendary China's greatest building was built. Wu Xie seems to know everything about the building, but he is indifferent to the puzzles. He seems to regard this place as his chessboard. What is he planning?