A New Era Begins with Maintenance Apprenticeships

This is a grand era that spans two major galaxies. Hundreds of millions of years ago, an ancient civilization called "The Sower" left countless ruins in the universe. Their technology far exceeds the imagination of today's humans - biological mechas, consciousness networks, energy resonance technology... Each of them is enough to change the course of civilization. However, the Sower suddenly disappeared at an unknown point in time, leaving only ruins scattered among the stars, waiting for discovery by latecomers. A few years later, humans stepped out of the earth and began the long journey of interstellar colonization.