It's simple. The wage earners who come here are generally waiters, network administrators and security guards. If you invest, I feel smaller. Clothing and catering are more profitable. Because Yanji is an entertainment city, people here pay attention to beauty and entertainment, so Internet cafes, restaurants, KTV, clothing stores and so on. Very popular. In contrast, the overall development of this city is not to learn Korean quickly. Go to Daxin Bar to learn some basics, and then communicate with Korean friends more.