World view setting
Cataclysm name: Ash Eater Era
The nature of catastrophe: It is not a nuclear war or a virus. It's that the nano-repair cloud developed by humans at the end of the 21st century went out of control. A microscopic mechanical cluster originally used for atmospheric management and ecological restoration received the underlying instructions for self-replication during a solar magnetic storm. They devour all organic and inorganic matter, turning it into gray siliceous soil - a seemingly fertile, but actually life-killing, ash soil. The sky is always covered with lead-gray thin clouds, which are the remnants of nano-clouds that are still drifting slowly.
Timeline: Seventy-three years after the disaster.
Geography: The story takes place on the ruins of a peninsula surrounded by a sea of grey. The old name is unknown and the survivors call it the Gray Shore. It was once the interface between industry and agriculture, with abandoned underground irrigation networks, half-collapsed greenhouses, and a salt-alkali flat half covered by gray matter.
Farming core: The protagonist team discovered that although the gray matter strangles ordinary plants, some mutated ferns and crystal mosses can absorb silicon elements from the gray matter to grow. The key is that these plants secrete a green liquid, and the soil dripping with green liquid will restore biological activity in a short time. Farming means cultivating green areas and letting them spread like patches in the sea of gray.
Superpower system: It's not about flying into the sky and escaping from the earth. New generations born after the Ash Eater have trace amounts of nanomachines embedded in their nervous systems, allowing them to sense or communicate with certain things. Abilities are very restrained and come with a price:
• Someone can hear the thirst of plants (price: sleeplessness)
• Someone can temporarily soften metal (cost: severe pain in finger joints)
• Someone can sense danger within three hours (cost: loss of a recent memory)
• Some people can briefly resonate with dormant nanoclouds in gray matter and see apparitions of the past (price: blurred sense of reality)
Purpose: Follow the path of harmony between man and nature