Tuition 1 year, language 160 * 4 = 640. The four-year landing fee is 20 million according to 5 million a year.
These are rough calculations.
As for the work-study program, the salary is 1 hour, 6000 won. This salary can only earn some pocket money at most. If you want to earn living expenses, it will definitely affect your study.
Korea is a good university, which requires topik4 and English scores. It is difficult to take credits, graduate and get fewer scholarships. If it is a school ranked around 30 in Seoul, it may be much cheaper.