In 2087, humans released smart nanoparticles to save the climate. Three years later, the particles went out of control and evolved into a dust cloud covering the world, and the sky was forever dark.
Sixteen-year-old Axel grows mushrooms for a living in Area D of the Underground City.
When he was ten years old, his parents died of dust sickness, leaving him with a ration card, a shabby plant illustration, and a survival creed: living is more important than right or wrong. He neither cries nor makes trouble, goes to work when he should, and eats when he should. In his spare time, he built a robot out of scrap metal and named it "Chongzi". Life is ordinary, until you can get into the special recruitment quota in Area B, you will be considered successful.
Then he discovered a green plant in the completely dark greenhouse.
It is more than two meters high, growing wildly in places without light. Its roots are like neural networks, and it will fill his mind with images - the earth is in pain, the dust clouds are screaming, and this plant is their hand reaching out for help.
Axel knew he should report it. But as he touched the plant samples in his pocket, he remembered the words of his mentor Levi: Useful information and life-saving wisdom are the most valuable things in the world.
So he decided to take a gamble. Not to save the world, not to have any bullshit ideals, just to make a better living.
By the way, let's see if we can still talk about this doomsday.
Purpose: Beyond survival, there are choices