수정은 사기를 당해 전 재산을 잃고 급식비 낼 돈도 없는 기간제 교사이다. 수정은 자신의 담당 학생을 도와주려다 한강에 빠지게 되고, 그런 수정을 한강에서 이별 통보 알바를 하던 복수가 구하게 된다.

Nine years after getting wrongly expelled from high school, a man re-enrolls with a plan to expose the truth and make his enemies pay.

Nine years after getting wrongly expelled from high school, a man re-enrolls with a plan to expose the truth and make his enemies pay.

Nine years after getting wrongly expelled from high school, a man re-enrolls with a plan to expose the truth and make his enemies pay.