In the Era of Light and Harmony, the weather is drawn by emotions and happiness is calibrated by the system. Weather painter Ying Qing reconciled the sky flattened by the "Harmony Agreement" day after day, until she inadvertently dyed the morning light green with a touch of lonely gray-blue. What made her even more shuddered was that no one noticed anything unusual, but she was the only one who remembered the original color of the sky. This green crack was the starting point of her awakening. She is determined to pursue the erased truth and fight against the absolutely fair AI that converts all human emotions into docile energy. However, she does not know that the truth she uncovers will shake the foundation of this bright civilization parasitic on the cocoon shell of giant creatures. The silence she longs for may be the prelude to the extinction of the entire world.
