The "Rust Tide" catastrophe swept the world, and out-of-control nanomachines devoured civilization and turned the steel jungle into a death trap. The survivors huddled underground, struggling to survive in the shadow of toxic rust dust and violent machinery.
Lin Xiu, a "Rust Seeker" burdened with pain and responsibility, went deep into the abandoned city on the surface to search for supplies for the shelter that was on the verge of collapse. During a desperate mission, he witnessed a strange scene: a group of rusty construction machines were actually collaborating to repair a gun! What's even more shocking is that he discovered a crystal that emitted pure green light - the "Heart of Machinery" - in the core of a broken excavator.
This crystal was a key that Lin Xiu couldn't understand, but it led to disaster. It led to a crazy siege by out-of-control machines, and ignited the greed and fear within the survivors. Some want to seize it as a weapon, while others want to completely destroy it. In a wasteland where trust is scarcer than clean water, Lin Xiu is forced to embark on a road of escape and survival.
He must deal with "alien" machines that are not completely out of control, survive the strife of human factions, delve into forgotten technological ruins, and face the shocking truth about the origin of the disaster. He gradually discovered that behind the "rust tide" lies humankind's own arrogance and the possibility of redemption. That beating "mechanical heart" may not be a symbol of destruction, but the last hope to connect the past and the future, human beings and steel.
Every decision Lin Xiu makes will sound the death knell of human destiny or the clarion call of rebirth. In an era dominated by rust, looking for vitality is the greatest resistance.