Modern delivery rider Xing Yang transmigrates by accident while making a delivery. When he opens his eyes, he has become a poor, uncouth man in ancient times, with an empty house and a debt of three dou of rice to the landlord. To dodge his creditors, he is forced to marry Lin Mian, a young man who was once jilted, and somehow ends up registering their marriage at the county yamen. From a novice who burns his meals to making a living by selling modern snacks from a stall, Xing Yang protects Lin Mian with a rough man’s honest devotion, while Lin Mian offers him gentle, thoughtful companionship, keeping the books and doing embroidery to help support the household. Amid their chaotic daily struggle to get by, the “contract couple” forced together slowly grow to love each other. In the end, they build a prosperous life together and raise a happy family of one son, one daughter, and one young man.