For example, it is quite difficult for China students to enter Peking University and Tsinghua, while foreigners who apply to enter Peking University and Tsinghua mainly examine students' Chinese proficiency need to submit corresponding Chinese proficiency test certificates and pass the school interview. So, similarly, it is the same process for China students to apply for specialized courses in Korean universities.
Although Seoul National University is equivalent to a prestigious school like Peking University Tsinghua in China, it is not difficult for China students to apply for admission to Seoul National University as long as their Korean proficiency meets the admission requirements. Only for students who apply for admission to Seoul National University, apart from Korean proficiency, English proficiency indirectly determines whether your admission materials are better than other students. It is the policy of many foreign universities to admit students through healthy competition.