At the end of human civilization, memory has become the most dangerous weapon.
When the "Silent Eye" system monitors every thought, and when the "Ashes Protocol" eliminates all sparks of awakening in the name of "order," the world has already fallen into a silent winter of civilization. According to legend, seventy-two glorious civilizations were annihilated one after another just because they touched the unknowable taboo-the eternity of consciousness. The only witness to all this is the being sealed behind the "Gate of Ashes": the Lord behind the Gate, the watchman of the first generation civilization, and the "original sin" imprisoned by the Council of Successors. What is the truth? The protagonist Lin Mo is embarking on a mysterious journey of exploration.