"Grandpa, have a drink."

Slender teenagers with foot chains are carrying a bowl of water for their old grandpa to rest and drink. They have been building palaces here for decades, working day and night, but not getting a little pay, but sometimes the people of the clan are tired to death.

The wrinkled old man drank some water and looked at the young man with loving eyes, but a little sad.

"Grandpa, when are we going to work?"

The teenager was distressed. He hated the supervisors of the local spiritual clan. Sometimes he couldn't help running away with his grandpa, but he was stopped by his grandpa.

Because people...