When transnational trade executive Chen Mu took a bronze compass that could cross planes and stepped into a different world where steam mechas and yin-yang shikigami coexisted, he only planned to be a stable villain. Use lighters in exchange for spiritual crystals, use stainless steel tableware in exchange for alloy formulas, and enjoy yourself. Until he met Su Qingqian, a cultural relic restorer who also traveled through time. One of them used physics to decipher the yin and yang magic, and the other used archeology to decipher ancient runes. They discovered that the "magical" nature of this world was actually a technology that was deliberately locked away three thousand years ago. As a result, a "psionic harvester" that can also be used by civilians was born in a small workshop. The patent licensing model impacted the monopoly of the ancient aristocratic families. The first "Gear Competition Festival" open to civilians was quietly prepared... The Onmyoji nobles of the old era and the steam tycoons joined forces to fight back, and the plane trading system also revealed its cold will to guide civilization. In this silent revolution about technology, power and the path of civilization started by two time travellers, the gears are already turning and the runes are being rekindled.
