Jang Hye Sung is a bold, sassy, thick-faced, comical female lawyer. She is a prickly edge, sharp tongue who doesn't have a bit of concept or manners and finds it hard to be enthusiastic about what she does. Cha Kwan Woo is a serious, passionate and macho former police officer who becomes a government lawyer. Meanwhile, Park Soo Ha is a 19 years old boy who has the ability or superpower to read the people's minds. Together they will team up to solve the cases no one else wants, cases that only have a one percent chance of being found innocent.