I Can Move the Fortress in the Apocalypse of Spiritual Tide

A hundred years ago, the ancient artifact "Tide Heart" deep in the continent was artificially activated, and the spiritual energy tide went out of control. Spiritual tides periodically emerge from the depths of the earth like tsunamis, flooding the surface. Fixed cities were all destroyed under the impact of repeated spiritual waves, and human civilization degenerated from the "Sect Era" to the "Migration Era". All humans were forced to become nomads, migrating to survive between spiritual tides. There are no countries or cities in this world, only large and small migration teams walking in the wilderness. Whoever can survive the spiritual tide will be the strong one. Lu Xing, a porter on a migratory team, fell underground in the spiritual tide and obtained a three-square-meter metal platform. The platform can be moved, upgraded, and enlarged. From [three-square-meter iron plate] to [walking carriage], to [mobile fortress]... Others run as fast as they can when the spiritual tide comes. Others grabbed the high ground and suffered a bloody blow. Wherever his fortress goes, there is a safe zone.