Mob Sister (2005)

In a world dominated by powerful men, where strength and intelligence define a hero, a defenseless girl faces an impossible challenge. The only way to gain respect is to become the wife of the triad boss – a role Ah Sou unexpectedly inherits. This innocent girl is thrust into the heart of Hong Kong's criminal underworld, becoming the unexpected successor to the city's most powerful triad. She's caught in a dangerous vortex of gang warfare, assassination plots, and brutal betrayals. Amidst violence and shocking twists, she discovers her own power and fundamentally changes the rules of the triad.