The price is very high. When the rent is paid, it will be different if you live differently. Basically around 200,000 won! If you eat in the street, each meal is about 4000 won. The school canteen is a little cheaper.
The university registration fee in Korea is generally1000000. I have never heard of the registration fee of 3 million. Tuition is twice a year, depending on the major. Generally around 4 million. There are also 200,000 houses, generally about six square meters, belonging to the examination institute.
By the way, the registration fee of 3 million is for Koreans, and the international students are generally1000000.