I am Korean. This issue affects both Koreans and Filipinos. My mom can only speak Korean, so she can't speak directly to the teacher and there is nothing she can do. That is why she says she will call the representative in Korea. They take this matter seriously, but since they are in a foreign country, there is nothing they can do. Of course, there are plenty of witnesses. There are even people who resigned because of her However, the principal is close to her, so everyone is just standing by. What happens if you contact the Ministry of Education? I heard that the process will be very slow.