You Are the Richest Man

Once traveling through time, Ma Dong became the administrator of a city library in parallel time and space. During his time as an administrator, he only guided a few students who could not find jobs, a businessman who was going bankrupt, and a few young people who started their own businesses... In order to express their gratitude, some of these people gave him insolvent companies, some gave him dark cooking recipes, and some gave him... Many years later, the world's richest man knelt in front of Ma Dong. "Stop pretending, you are the richest man, please help me, teacher..."