When she was three years old, she said "I won't leave" and was permanently anchored in this world by something called "Star Brain".
Here she was poisoned, used as bait, and also loved, protected, and waited for.
It took her fifteen years to find the truth about this world.
Then she discovered that the truth was the real fog.
But, you can stay here, right?
Concept: Even in a designed and observed "small world", life can still have real meaning and independent choices.