After an unknown amount of time, the blue water planet with life drifted away from the solar system for unknown reasons. The planet mutated, leaving only a piece of pure land in Lanshui City. The outside world was fighting for the pure land. In order not to wander in endless pain in the infinite universe, various forces began to compete for this piece of pure land. But here are four teenage girls. There are people with different identities and abilities, and there are even some who don't belong to this time and space. It seems a bit out of reach? But they are a group of four...
Purpose: World peace