Park Soo Ha met Jang Hye Sung when he was eight years old and she stood witness to his father's murder. He has been looking for her ever since then.

Jang Hye Sung gets hired as a public defender. Her first case involves Park Soo Ha's classmate, Go Sung Bin.

To find evidences of Sung Bin's innocence, Hye Sung and Gwan Woo visit Sung Bin's school dressed as high school students.

Min Joon Gook is planning his revenge on Hye Sung. Meanwhile, Hye Sung and Gwan Woo both receive a case involving twin brothers.

Hye Sung and Gwan Woo work together on the case involving the twins. Meanwhile, Min Joon Gook moves away.

Soo Ha tells Hye Sung that the twins planned the murder, therefore Hye Sung agrees to help Do Hyun prove the twins are guilty.

Cha Gwan Woo tells Hye Sung that he likes her and that they should date.

Hye Sung's mother is murdered and Gwan Woo is assigned to Min Joon Gook's case.

Unable to accept the verdict for Min Joon Gook's case, Soo Ha takes the matter into his own hands, but the consequences are far more severe than he or Hye Sung could have imagined.

Hye Sung finally reunites with Soo Ha after a year of no contact, only to find him suspect to a murder and a with serious case of amnesia.

Hye Sung and Gwan Woo work together again to help with Park Soo Ha's case.

Do Hyun and Gwan Woo both find evidence that Min Joon Gook may still alive.

Attorney Shin asks for Hye Sung's help with Hwang Dal Joong's case.

Do Hyun agrees to take a DNA test for Hwang Dol Joong's case.

Hye Sung learns about Soo Ha's father involvement with Min Joon Gook.

Min Joon Gook lures Hye Sung into his trap by lying that he kidnapped Soo Ha.

Min Joon Gook promises to tell his whole story if Gwan Woo agrees to become his defense attorney again.