Geum Seok-yeong (Im Soo Hyang) is a woman who has experienced a lot of heartbreak in her life. One of those heartbreaks occurs when her boyfriend admits to killing her brother in a case of medical malpractice. Though that isn’t the entire story, he doesn’t tell her everything, and she uses her grief as motivation to punish doctors who commit negligence in court. Seok-yeong knows that there is so much outside of her control in her life, but she also knows there are still things she can do to combat the things outside of her control. That’s what makes her a badass. She uses what she can do to work around the things she cannot.