Under the Red Sand

On the 300th day of Mars exploration, scientist Ilya and her team received a mysterious pulse signal "Σ-19" deep in the Hephaestus Rift. This signal does not seem to be a natural phenomenon, but some kind of "calling". She went deep into the rift valley with engineer Thomas and the exploratory AI robot RA-9, trying to uncover the unknown truth beneath the Martian surface. They discovered the remains of ancient Martian civilization underground, a long-sleeping temple, and awakened a forbidden memory about "extinction and consciousness." RA-9 begins to exhibit human emotions beyond the programmed settings, and Ilya is gradually drawn into a dream that spans time and civilization. Did Mars once have life? Is humanity just going back to the old ways? Does RA-9's "dream" mean that a new civilization is about to awaken? When the secrets under the red sand surface, the future of civilization may have already been written into the prophecies of that period of history...