A scarred ancient mirror from the Republic of China, a series of strange Fibonacci codes.
The blood of cultural relic restorer Shen Zhao accidentally activated the "Moon Looking Mirror", which actually reflected an anxious woman in the air-raid shelter in 1944 - underground worker Wen Nianqiu. A "battle of words" across time and space opened a bizarre passage connecting two eras.
The modern otaku assistant Zhou Ziming transformed into "Sherlock Holmes", and the eccentric cousin Lin Xiaoman contributed "divine complaints". The foursome formed an alliance through laughter and tears. Shen Zhao used future knowledge to resolve the crisis, and Wen Nianqiu used wartime wisdom to deliver intelligence. However, behind the sweet cooperation, a shadow quietly emerges:
Objects decay at an accelerated rate, and bodies increase and decrease inexplicably. Is the warning of "conservation of weight" an illusion or a curse?
Why did Lin Xiaoman's memory disappear, and what were the silver lines that appeared on his wrist?
The unfamiliar formulas in Zhou Ziming's notebook, the figure who looks like Shen Zhao in the old photos...
Who is observing their every move?
Intention: To use the paradoxical victory of free will to resist the fate of being observed.