An expelled boxing champion, who now is a high-school teacher, witnesses intolerable violence and throws her first punch to build justice against it, while putting on a mask.
Acting
Shin Hye-sun's controlled fury—soft voice, devastating hands.
Direction
Park Jin-pyo balances absurd premise with genuine stakes.
Stunts
Shin trained 3 months; her hooks actually connect.

Director
Park Jin-pyo
Trivia, insights & behind the scenes
Based on a 2019 Naver webtoon that went viral during real South Korean teacher protests against student violence.
Shin Hye-sun insisted on doing 90% of her own stunts; the production had to hire her a boxing coach from her previous drama 'Thirty But Seventeen.'
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