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
Shin Hye-sun
So Si-min
Lee Jun-young
Han Su-gang
Park Jung-woo
Ko Jin-hyoung
Park Hyuk-kwon
So Young-taek
Cha Chung-hwa
Lee Jae-gyeong
Son Sook
Jin-hyoung's Grandmother
Lee Jung-ok
Seo Sang-woo
Lee Chan-hyeong
Lee Gwon-joong
Bae Hyeon-jun
Byeong-jin
Cha Woo-min
Lee Moon-gi
Kim Sang-woo
Park Jung-ho
Lee Tae-hee
Kim Jeong-gyu
Lee Tae-gyun
Byun Jae-hyeok
Kang Anna
Song Eun-gyo
Kang Na-ru
Min-ji
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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