From what I know, the school is allowed to make you pay back your rent for the year, as they Office of Education has to give the money to your school to cover your rent for the year, and if your bail early, the school still has to keep paying the landlord for the remainder of your contract. This happened to my downstairs neighbor, she re-signed in August 2019 and the COVID hit in 2020 and she decided that she had enough, applied to grad school, and told the school that she had to leave mid-April. They told her that she had to cover here rent until August (the end of here contract). So she had to give the school 1.6 million won. She was on he 3rd year with EPIK though, so she didn't have the school pay her deposit... instead she paid it herself directly to the landlord (I'm not sure if she had it returned or not....)