Programmer Su Yue is addicted to AI, owes 100 million points, and is sucked into Bianjing of the Northern Song Dynasty by the system. He can only return by making enough 100 million points in the Northern Song Dynasty. The encyclopedic system knows everything, but asking questions deducts points, and it issues loans when the balance is insufficient; every coin is a choice. He crashes into Shen Yao's teahouse, smashing her teapot. A modern man who doesn't know how to make tea relies on the system, Shen Yao's craftsmanship, and Zhao Yan's abacus to go from a street stall to an Imperial Street teahouse. Qian Wanjin's suppression, the Bianjing flood, and saving people from epidemic are constant struggles between accumulating points and saving lives. He says he wants to go home, but in his heart he cannot let go of the people here.