Civilization is annihilated, and memory becomes the last currency. When the guardian becomes the executioner, when continuation means complete forgetfulness. The lone watchman Mamoru holds the key that can restart the world or make it completely free, standing under the aurora. She is the last person to remember why humanity lives, and will decide whether civilization is worth the cost of losing her soul... To live. This is the ultimate choice between memory and the future, entropy and the weight of life.
