Chen Kunming, who graduated from a well-known domestic financial school, joined the headquarters of a large securities firm to do stock research, and his good friend Sun Xiaoyu joined a medium-sized listed company to work as finance. Their undergraduate roommate Li Lulu entered a law firm after graduating from undergraduate school. The story revolves around the working lives of these people and involves a lot of economic and financial knowledge, financial accounting and legal knowledge. Educational, entertaining and thought-provoking. [The author of this article is very busy at work and often works overtime and often travels. I took the time to write it with a heart that loves Danmei. The updates are irregular and unstable]