Chemical engineering top student Gu Yan unexpectedly is reborn in an ancient salt village, witnessing salt farmers being exploited and oppressed by black-hearted salt merchant Xue Dafu. Relying on modern chemical engineering knowledge, he innovates salt-drying technology to create premium snowflake salt, leading the villagers to build a salt field industry. Facing opponents colluding with corrupt officials to frame and suppress him, Gu Yan holds the military salt special supply approval and counter-attacks on the spot. Starting from a barren small fishing village, developing the salted seafood industry chain, establishing the Sea God Group, and ultimately creating a massive sea salt empire that shakes the world.