The issue of tourist visas for students from Daqing City, Heilongjiang Province to South Korea.

Travel agencies can do it on their behalf, but some travel agencies may not know what to do if they have not done this kind of business. Then you can find other travel agencies, but the travel agencies in Northeast China should be familiar with the Korean visa business.

You can sign up for a free travel group, which means that the departure date and return date are fixed. You have to leave together and come back together, but you are completely free in Korea. As long as you get off the plane in Korea, you will leave separately, then meet at the airport on the designated return day and fly back with the tour guide. I think such a group is more in line with your requirements.

You can find several travel agencies first, ask when you can send a free package tour, find a package tour that you are satisfied with, and then give them the information. They will help you book a plane ticket and apply for a visa. You just have to wait to leave.