Era of Xuanke: Taoist Master of Starry Vault

Three thousand years ago, a sudden change in the world caused the earth's civilization to be lost, and the earth's civilization slowly evolved into a technological civilization as it found another way out. The protagonist mistakenly entered an ownerless immortal cultivation cave and obtained the lost immortality cultivation method, practicing in the cave for hundreds of years. At this time, the earth, due to the rapid development of science and technology in the past hundred years, has also received signals from other technological civilizations...