In the recent economic crisis, South Korea relaxed its policy and applied for universities independently. Before South Korea relaxed its policy, many of my classmates handled it by themselves and didn't spend a penny. What "the first time the Ministry of Justice refused the visa, the second time it was very sad to come ..." and so on were used by the intermediary to scare people. I haven't heard of anyone being refused a visa since I came here for so long.
In fact, Korea is not as good as it is said on TV. What a dump! They always shoot their busiest streets on TV, but in fact, 200 meters away from their cameras is a ruin. If you want to know the truth, just use the satellite map on Baidu to see how prosperous Seoul, Busan and Daegu are.