Regarding "language" and "literature", it is suggested that Korea University, Sungkyunkwan, Qingxi and Xijiang in Seoul can all learn. Many schools have such departments.
I don't know whether you studied undergraduate or graduate in the past, but the requirements will be slightly different. But you must pass the Korean exam, or if your English is good, you can take the GSIS course. I need to make a judgment based on your specific situation. You have provided too little information.