After finishing his study in the United States, Jung Simon got his CPA and legal accountant qualification and worked in the corporate auditing, management consulting, and management of intellectual property rights field for a long time. His written works include a humanities brunch series that features works such as World Literature Brunch, World History Brunch, and Philosophy Brunch. Jung also wrote a legal education series with a lawyer friend of his, to positive reviews, called 31 Landmark Supreme Court Cases and 31 of the Greatest Trials in World History.