A titanium alloy dog tag engraved with a dragon pattern connects the centuries-old entanglement between the "Qianlong" special forces and the "Rusty Gear" intelligence network. Lin Mo, an ordinary private, was accidentally involved in a border conflict and was recruited by a mysterious force. Little did he know that he was already a key pawn in the game between the two factions. From the red soil ridged boundary monument to the eternal clock in the Valley of No Return, from the Gear Alley of the Time Market to the symbiotic contract in the Port of Reincarnation, he danced with the mysterious woman "Phantom" on the edge of life and death, deciphering the bloodline code left by his father's generation. The snake bone necklace found while sleeping in the cemetery, the copper finger cots in the secret room of the execution ground, the twin tattoos deep in the bell tower... Every clue points to a truth that subverts cognition: the so-called opposition between good and evil is just two sides of the same gear. When the dragon pattern and gears were melted into a new totem in the volcanic ash, Lin Mo finally understood that the real legend is never the journey of a lone hero, but the reverse rotation of the gears of hatred, planting a peaceful forest at the end of reincarnation.