

Zhao Yumin is a Taek-won-do coach , whose had hard times since his best student Han was killed during an underground championship . Zhao almost gave up when Ling appears at his door , insisting that Zhao must train her for the championships, and became the first woman fighter to lead a man's division.
Stunts
Eva Huang's actual Taekwondo background shows in fight choreography.
Acting
Gordon Liu brings gravitas to mentor role despite thin script.
Director
Xie Yi
Trivia, insights & behind the scenes
Eva Huang was a national-level Taekwondo athlete before acting, making her one of few leads who could actually fight.
Underground fighting films exploded in 2010s Chinese cinema as MMA gained mainstream popularity — this rode that wave with a gender twist.