- HD 1080
- Runtime: 107m.
- Status: Released
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- Languages: ja
- Country: Japan, South Korea
- Director: Chang
- Stars: Ayaka Miyoshi, Hideaki Ito, Yosuke Kubozuka, Goki Maeda, Kanata Hosoda
- keywords: revenge, based on webcomic or webtoon
- Production_studio: Kross Pictures, Knuckle Girl Productions
- providers: Amazon Prime Video, Amazon Prime Video with Ads
- The Knuckle Girl is featured in the top rankings of 2023
- #87 in Top Action Movies of 2023
Following the story of Ran, who confronts a mysterious organization by participating in a no-rules deathmatch after discovering her missing younger sister Yuzuki is involved in a crime. With danger at every corner, Ran must trade in her boxing gloves for brass knuckles. Will she save her sister?