On the day he won his first prize, Lin Yi resigned. He originally wanted to avoid the court, guard a shop, and live a more sensible life. But when the shop opens later, the trade routes will lead to border towns, the account books will be delivered to the palace gate, and the people who used to treat him as a joke will also sit in front of him with their own prices. Some asked him to bow his head, some asked him to stand in line, and some wanted him to continue being the out-of-the-way shopkeeper. Lin Yi doesn't want to be number one in the world. He just doesn't want to see that people who follow the rules always suffer first. From Dongshi to the capital, from a shop to a trading road, this is the story of a young girl who changed her career to become a shopkeeper.