Modern young man Hu Su fell into a vegetative state due to a car accident, but his consciousness traveled to the fictional ancient world and possessed the body of a poor person in the Hu country. Relying on modern business thinking and mechanical knowledge, he started by improving farm tools and establishing a business, gradually breaking down strict class barriers and becoming an upstart in Hu's business world. However, in the troubled times of the five kingdoms, there are many dangers: the powerful people of the Hu Kingdom are afraid of his rise, the Dragon Kingdom's cavalry covets the border wealth, scholars from thousands of countries question his "heretical theory", there is a conspiracy hidden in the famine of the Qi Kingdom, and the prophecy of the mysterious Chen Kingdom even involves him in the struggle for destiny.
When Hu Su traveled around the world using trade routes as a link, he met Su Waner, a female general from the Dragon Kingdom. This cold and arrogant nobleman used gunpowder to improve ordnance and the art of war to rectify the border. His methods were ruthless but concealed traces of modernity. The two went from hostile probing to breaking through the situation side by side, and at the critical moment of life and death, they confirmed each other's identity as time travelers with the phrase "odd and even remain unchanged". One of them weaves a web of trade, and the other controls power with an iron fist. Together, they uncover the ancient prophecy of "the coming of twin stars" behind the disputes among the five kingdoms. However, they also become the targets of Chen Guo's mystical forces...
In this game that spans time and space, Hu Su and Su Waner must not only protect the fire of civilization endowed by modern memory, but also break away from the shackles of fate in the troubled feudal world. When the war between the Five Kingdoms burns out the mountains and rivers, can they use their "twin souls" to rewrite history and find their way back?
