Xingyi grew up in a slum. As an orphan, she was greedy for life in a dirty and messy environment. She tried every means to survive. During one of her escapes with food, she strayed into the underground world and encountered a strange... "Machine"?
Chen is a "bionic person" who has been underground for thousands of years. His only mission is to stay here and silently watch the operation of the machine. When alien civilization species arrive, he can choose to be friendly or expel them from this place.
This planet is a desolate land, and almost no one would choose to live here. However, according to alien civilizations, this Death Star was named "Earth" by them. They don't know the history of the earth, but they unconsciously praise the history of the earth. They don't know their own history, but they long for their own history.
But it is obvious that the glorious civilization on this Death Star cannot be reproduced at all, and the history that exists in fantasy can only disappear from the mind in the face of survival, and be completely annihilated when the planet dies...
Concept: In the long river of the universe, there will always be creatures trying to survive