Purring in the face of injustice.
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.
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Shin Hae-sunSo Si-min
Lee Jun-youngHan Su-gang
Park Jung-wooKo Jin-hyoung
Park Hyuk-kwonSo Young-taek
Cha Chung-hwaLee Jae-gyeong
Son SookJin-hyoung's Grandmother
Lee Joong-okSeo Sang-woo
Lee Chan-hyeongLee Gwon-joong
Bae Hyeon-junByeong-jin
Cha Woo-minLee Moon-gi
Kim Sang-wooPark Jung-ho
Lee Tae-heeKim Jeong-gyu
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