South Korea, which grew and leaped forward as an advanced nation through exports, had the Korean diaspora behind it, showcasing the nation's potential worldwide. The greatest strength of the Korean diaspora lies in its global network. Spread across approximately 190 countries globally, including the United States, Japan, China, Russia, Europe, as well as Central and South America and Africa. Furthermore, the majority of the diaspora reside in urban areas of their host countries, giving them a significant advantage in acquiring local information. Notably, the younger generation of Koreans abroad are rapidly integrating into the mainstream society of their host countries, becoming a great asset to South Korea. Recently, as South Korea's international standing grows, not only have the business activities of the diaspora become more vibrant, but networks with domestic companies and young people are also being strengthened. And last June, with the launch of the Overseas Koreans Foundation, a plan to build a business network where Koreans abroad can support each other is also underway. South Korea, with 7.5 million overseas Koreans across about 190 countries. What are the role and importance of the Korean economic network in a borderless era, and what preparations are needed for it? We explore this through the stories of Korean businesspeople.