After the raid on the Havoc Tower, operative “Gray Shadow” Luo Chen receives a mysterious order to track down a top-secret list called the “Pandora Protocol.” The people on the list are dying one after another, and every operation bears a startling resemblance to his unique tactical style. The enemy seems to predict his every move, his comrades fall one by one, and all the evidence points to an absurd conclusion: there’s a traitor among them, and the callsign of the “traitor” is “Gray Shadow.” When Luo Chen pinpoints the final coordinates, what awaits him is not an enemy, but a mirror. The final chapter of the protocol bears a single line: Highest-level authority: Luo Chen. He must break out of the inescapable trap he himself has laid, in an ultimate mission to “kill himself.”