The dim moon will fall, and the old dynasty will fall.
The human-monster feud is a cage, and the body double is a cage.
Is there new life outside the cage, or is it a bigger cage?
Before the cage door opens, no one knows what the scenery is outside.
Concept: Someone is born trapped in a cage as a canary for people's entertainment. Some people tie themselves up in a cocoon just for a better new life.