I'm Repairing Beacons in the Milky Way

Erin is an E-class beacon repairman at the bottom of the galaxy. Her husband has been missing for three years and she is in debt. Until an S-class beacon malfunctioned, and she suddenly heard the sound of the beacon - a machine that others regarded as dead, whispering softly in her ear. Others rely on technology to repair beacons, but she relies on "communication" to repair beacons. Her rating skyrocketed. It only took three months to go from E-level to S-level. People who once looked down on her couldn't reach her. She just wants to save enough money to find out the truth behind her husband's disappearance. But as more and more beacons were repaired, she gradually discovered a terrifying fact: those dimensional beacons all over the galaxy were not designed to travel faster than light speed at all. They are feed to the universe. But now, there is not enough feed.