After the red meteor streaked across the sky, human civilization came to a standstill. From that day on, people could no longer make a rocket, a nuclear bomb, an airplane, a car... The pyramid of civilization built up by modern science collapsed, and the disaster was far more than that. The gray world descended with the red meteor, like a ghost reflection behind a mirror, dragging the civilized world into the abyss of disorder little by little. In this era, human life is as small as dust; in this era, human beings are as bright as stars. When the sun is about to fall, someone sees a actor standing on the ruins of civilization, red as blood, crying when laughing, the curtain of the era slowly opens behind him, he opens his arms