Chen Wuge is a low-level mechanic in Donghai City. His parents died in a prosthetic accident. He repairs scrap machinery in a tin shop every day just to pay off his debts.
A hundred years ago, the "Iron Meteor Disaster" destroyed human civilization. The survivors established twelve mechanical city-states. Steam and cyber technology were intertwined. The battle for national destiny started every ten years to determine the ownership of energy.
He accidentally activates the "past life echo system". When he touches the abandoned machinery, memory fragments of his previous life as a failure of the Mechanical God's Throne will flash back.
Faced with the pursuit of the Rivet Gang, the boss's wife demanding debts, and the crisis of elimination of the mechanical sacrifice, he relied on the echo to analyze ancient technology and awaken the core of the lost mecha "Xingtian".
From an ant repairing scrap metal to a summoner who holds the key to gears, he rises step by step, uncovering the truth about the betrayal of twelve city-states that has been hidden for hundreds of years.
