He Yanzhao

In the lawless 1980s Kowloon Walled City, an aspiring student and a triad enforcer find an unlikely, dangerous love while fighting for their lives.

Former mixed martial arts champion Jin Xi Er accidentally discovered that her twin sister was unfairly treated by the company, where she works, so she entered it, dressed as her sister, abusing the boss and bad colleagues all the way. But soon, to her surprise, her heart starts beating faster, because of one of her colleague.