How can i be an exchange student in south korea?

i want to be an exchange student in korea 'cause i now know how to speak a little korean and i'm very good in english and my grades are high. so i guess i am very qualified to be an exchange student. by the way i'm a graduating high school student from the philippines. i'm going to graduate this march. even just a month for exchange will do. i just want to go to seoul, south korea.