Yang Zhiqiang, the heir to a modern food factory, takes over a struggling business burdened with huge stocks of food nearing its expiration date. By chance, he discovers that an unused warehouse on the factory grounds is connected to Qionghua, a kingdom a thousand years in the past, besieged by enemy forces and facing a desperate shortage of food and water. Yang gradually sends the factory's food supplies into the ancient world, alleviating Qionghua's survival crisis. Grateful for his help, the female emperor repeatedly sends rare antiques and precious jewels in return. Through this extraordinary exchange across time, Yang turns the factory around, pays off its debts, expands production, and continues supplying Qionghua with essential goods, joining forces across time to protect its people.