The main world is the end of natural disasters: sandstorms, high temperatures, earthquakes, floods, etc.
Mission world: the end of the world or vacation (enhance skills and collect supplies)
Cheat Finger: Add space to the system (not commonly used but necessary)
Yang Lingzhen learned skills and collected supplies in the mission world, and took her family to survive in the apocalypse of natural disasters.
(In special circumstances, you will ask for leave in the comment area)
Purpose: Family love, growth