Zhenlong Engineer

The cries in the sewers, the sighs of the viaducts, the moving corpses in the morgue - they are all symptoms of the dragon underground. Zhang Yao, a pipeline network engineer who is afraid of going down the well, uses data to auscultate the dragon's veins and uses the rhythm of the lives of three million people as a seal. Save the city and bring home his father who is trapped underground.