There is a manor on the top of Yashan Mountain.

The manor covers hundreds of acres, but it seems simple and unadorned. There are many trees and rockeries in the manor. If you stand in the sky and look down, you will find that these trees and rockeries contain some rules.

Deep in the manor, there are several courtyards.

In one of the courtyards, an old woman with silvery hair is playing Go alone.

Behind her stood two middle-aged women.

Half an hour later, the old lady put down her chess pieces and asked two middle-aged women, "Is the maple here?"

"Back to our ancestors, Maple is waiting outside." A...