Su Wan, the descendant of Qingxi Dye House, became the target of the "Immortality Project" on the dark web because of the secret of the blue crystal grass gene left behind by his mother. The copper dyeing spoon in her hand is a token of the dyehouse's centuries-old inheritance, and it is also the key "antidote" that can solve the genetic crisis. The special genes flowing in her body hide secrets that can subvert the world.
Shen Yanzhi of the Shen Group, burdened with the bloody entanglement between his family and the dark web, unexpectedly crossed paths with Su Wan. From the dye attack and defense at the source of Blue Creek, to the breakout of the base in the Arctic ice field, to the ultimate confrontation in front of the old blue vat in the dyeing shop, the two gradually fell in love while tracing the dust-laden truth about their parents and fighting against the mastermind Gu Mingyuan in a life-and-death battle.
When the spirit of the dye vat awakens and a genetic disaster strikes, they use guardianship as a blade and use the pure emotions and original genes of the Qingxi people to turn the tide. In the end, the dark web conspiracy collapsed, Qingxi Blue returned to clarity, and the figures of millions of people in suits and white shirts side by side turned into an eternal promise to accompany them for the rest of their lives.