On Lu Mingsheng's first day at work, he set up a "work station" for himself in the corner of the warehouse filled with dusty files: a homemade folding chair, a thermos cup for soaking wolfberry, and an eye mask, earplugs, and neck pillow. Just as he was falling asleep in the sun, Gu Huaizhou made a surprise inspection and opened the "Beijing Food Map" that was covered over his face to block the light. He found that underneath it was actually a file of a ten-year-old unsolved case, and the edges were filled with on-site restoration diagrams and logic maps that Lu Mingsheng had drawn casually and that only modern people could understand.
