Brave Citizen (2023)

Other name: 용감한 시민 / Yonggamhan Simin / Фильм Отважный гражданин

Synopsis: The story of hero So Si Min, who once ruled the nation with her top-tier hapkido skills as a high school athlete. Seven years later, after becoming a part-time teacher, So Si Min finds herself the target of the evil student Han Soo Kang.
(Source: Soompi)
Adapted from a webtoon of the same name.
Director: Park Jin Pyo [박진표]