1. A teacher with 20 years of experience teaching Korean, originally at Yangcheon High School.
2. He was furious about the private school corruption at his school and exposed it.
3. Dismissed by the school.
4. Withdrawal of dismissal because the Faculty Appeals Review Committee declared disciplinary action invalid.
5. After 5 months, the school dismissed him again.
6. Administrative protests for over 200 days
7. Run for education committee at the recommendation of people around me 8. Elected by 0.3% margin 9. Yangcheon High School corruption scandal. Approval of 13 executives canceled and 900 million won in subsidies recovered If you mess up, you too will get elected.After serving as a member of the National Assembly, he returned to the church.