The universe is a dark forest, and Mu Ye is the silent hunter in it, hunting down all exposed civilization detectors for hundreds of years. Until an encrypted broadcast from the edge of the universe tore through the silence: "Don't answer! We have a traitor in our midst." Mu Ye discovered that the "threat" he eliminated was actually a firewall against advanced civilizations, and the traitor was guiding the real hunters, aiming their guns at the last guardians.
