Chen Mo, a modern deliveryman, accidentally traveled through time and became the abandoned son-in-law of the city outside Bianjing in the Northern Song Dynasty. The original owner was humiliated by the Su government for being "useless", but he awakened to the "merit system" when he fainted from hunger. The system panel shows: Doing good deeds and accumulating merit can be exchanged for skills (such as "Cooking Cake Master" and "Smooth Talker"), items (secret sauce recipes, bruises) or to unlock new functions. Chen Mo relied on modern memes (such as "The second portion is half price" and "Buy the cake to get a joke") to earn merit by selling cooking cakes in the market. From being laughed at as a "waste" to becoming a "timely rain" for the neighbors, in the process, he was involved in real historical events such as water transportation disputes and refugee resettlement, and even more Because he pretended to be a "good deed master" to break up scammers and stood up for a little doctor, he unexpectedly won the favor of many female protagonists. In the end, his merit points exceeded 10,000, triggering the realm of "great kindness", leading the people to fight against greedy landlords, and counterattacking to become a son-in-law with a "good reputation far and wide" in Bianjing.