You will be qualified if you are

• holding a BA/BS degree (4 year college degree) in English, Education or other valid major such as linguistics, or holding a certificate such as TESOL
• a native English speaker
• making a commitment to stay in Korea for 6 months
• having good communication skills
• in good health condition
• committed to being free from illegal activities prohibited by the government

Preferences will be to the ones with experience, especially to the holders of TESOL or other certificates or a degree in education or English major.