Echoes of Gray Ruins

72 Years ago, a cataclysm called "The Great Annihilation" tore apart the old world. The gray tide caused by the geomagnetic reversal swept across the world, strong radiation dust swallowed civilization, aberrations ran rampant in the wilderness, and the remaining humans huddled in the dome anchors to survive. Scavenger Lin Ye is an outlier in Anchor Point 037 City - he is born immune to gray tide radiation, and has awakened the special ability "Blank Echo" that can analyze all echo signals, but the price is the constant loss of memory. In order to retrieve the broken past, he stepped into the crisis-ridden Ash Ruins. In a bank vault that had been sealed for decades, he accidentally touched a black metal box bound to his life experience, and also received a mysterious signal from the core of the catastrophe. When he discovered that his photo actually appeared in the old world documents before the disaster, when the power system of the dome anchor hidden the secret of the same origin as the Great Annihilation, when the "gift" of the echoers would eventually lead to the fate of the aberrations, Lin Ye had to embark on a path that subverted all cognition: He wants to uncover the truth about the gray tide, fight against the darkness behind the anchor point, find out who he is in the disappearing memory fragments, and find the last hope for the survival of human civilization. This is a doomsday journey about survival, memory and truth. Every time he uses his ability, he is getting closer to oblivion; every time he is close to the truth, he is being pushed into the abyss by the whole world. When the echo in the gray ruins finally becomes clear, can he still remember why he fought?