go to china's world circle of friends, put aside all halo and pressure, get out of the familiar environment, and go to a foreign land that is closely related to us. explore the traces of the era of great exchanges in the human fireworks of the silk road and discover a brand new self. three stop itinerary routes, laos, saudi arabia, iceland. returning to the generation, the seven permanents are always there, the original formula surprise continues with five women and two men, different eras, different concepts, different interests, and different habits, you want guests. domineering elder sister, confused second sister, casual third sister, straightforward fourth sister, weird little sister, arrogant eldest brother, and personalized younger brother.