It Turns Out That the Earth Is so Strong

The Dawn Era - the first era after the End of the Ages. In this era, monsters, zombies, green tribes and humans jointly control the world without interfering with or invading each other. In this world, the laws are strict! In this world, all rules and will must give way to genius! In this world, power must also lie on the ground! Because there are a group of old people in this world who practice Tai Chi and dance senior disco every day. . . But they are unswervingly implementing the will of 'that person' - to protect the future of the earth! Everyone knows that they are a group of old people, but no one knows what they have experienced and what they are looking forward to~ Long live the earth! Long live the earth! Long live the earth!