Noh Ji Wook is a prosecutor in the Central District Prosecutors’ Office who ends up switching professions to a private attorney. He harbors a trauma stemming from an event in his childhood involving his parents and his first love. Eun Bong Hee, a Taekwondo athlete in her youth, is a prosecutor trainee who has become a murder suspect. Eun Bong Hee and Noh Ji Wook both find themselves being the focus of a killer.
Episode #1.1
Eun Bong Hee seeks revenge on her cheating boyfriend, but her knight in shining armor turns out to be Noh Ji Wook, a prosecutor she earlier accused of being a pervert. Bong Hee secures herself a legal internship, unaware that her instructor will be Ji Wook, who remembers her antics well.
Episode #1.2
The tables are turned when Bong Hee suddenly finds herself accused of murder. The situation only worsens when Ji Wook is made the case's prosecutor, his future dependent on her confession. Ji Wook finds a bloody knife at the scene of the crime that could greatly affect the case. Bong Hee's murder trial begins.
Episode #1.3
Bong Hee tries to find Hee Joon's real murderer, but her only hint is a melody. Ji Wook has trouble adjusting to no longer being a prosecutor. Bong Hee and Ji Wook take on opposing clients, but they realize they must work together when things go awry.
Episode #1.4
Bong Hee has a close encounter with the culprit. Ji Wook notices District Attorney Jang keeping an eye on Bong Hee. Bong Hee searches for work while living at Ji Wook's house. Ji Wook's ex, Yoo Jung, comes back to town with a mission in her mind.
Episode #1.5
Bong Hee pretends to be Ji Wook's girlfriend in front of Yoo Jung. Ji Wook hands in his resignation letter. Ji Wook sets up his own law firm and begins recruiting employees. Lawyer Ji's backstory with Ji Wook is revealed.
Episode #1.6
Ji Wook quickly becomes frustrated with his newly-assembled team. The suspect of a murder and robbery case requests Bong Hee as his lawyer.Bong Hee has a dangerous confrontation with District Attorney Jang. Jung Hyun Soo's lack of an alibi creates difficulty for Ji Wook's team.
Episode #1.7
Bong Hee struggles to reset her feelings for Ji Wook after being denied. Details of a past assault case arise concerning Jung Hyun Soo.Ji Wook faces off with unreliable witnesses in the courtroom. Later, he answers a call that could change everything.
Episode #1.8
Ji Wook tries to find out more about Hyun Soo while keeping his team in the dark. Lawyer Ji's excitement for a special day is quickly dampened.Hyun Soo begins to catch on to Ji Wook's suspicions. Bong Hee has trouble moving on from Ji Wook when he can't seem to leave her alone.
Episode #1.9
Go Chan Ho resorts to desperate measures to get away from Hyun Soo. Ji Wook comes to terms with his feelings, but is he too late? Bong Hee decides to help Representative Byun out with his "heroic" DUI case. District Attorney Jang asks Yoo Jung and Ji Hye to help him reinvestigate Hee Joon's murder.
Episode #1.10
Lawyer Ji receives a strange request from a client and is faced with a dilemma he can't consult his team on. Bong Hee becomes determined to figure out the Park Sung Eun case, even if she has to forgo bathing. Ji Wook tells Bong Hee about his family's past.
Episode #1.11
Ji Wook takes on a seemingly psychic client who has a vision that could affect more than just his case. Bong Hee and Ji Wook receive a new clue regarding Hee Joon's murder. A frightening realization comes crashing down on Bong Hee. So Jung Ha's predictions freak out the firm.
Episode #1.12
Bong Hee's old friend calls her for help after she's attacked. Ji Wook's firm wants to continue investigating Jung Hyun Soo, but they need help. Bong Hee and Ji Wook search for a witness or a weapon from Yeon Woo's attack. Social media-savvy Lawyer Ji then takes things into his own hands.
Episode #1.13
Chief Bang is rushed to the hospital, his fate unknown. Tensions rise at the firm as Ji Wook begins thinking about revenge. The firm contemplates if fabricating evidence is their only option for having Hyun Soo arrested
Episode #1.14
Hyun Soo is admitted to the hospital while still unconscious, therefore putting his arrest on hold. Ji Wook wonders who could have planted the bloody knife. An arson case brings back painful memories of the past. Bong Hee and Ji Wook go out on an arcade date, but run into unexpected company.
Episode #1.15
Ji Wook is at a loss after seeing the photo on Bong Hee's nightstand, and he decides to delve deeper into the past. Bong Hee notices Ji Wook's strange behavior as they investigate the arson case. Eun Hyuk goes to Yoo Jung for help.
Episode #1.16
Bong Hee breaks up with Ji Wook, but is left with nowhere to go. Ji Wook goes to see District Attorney Jang. A child from Bong Hee's Taekwondo classes witnesses a murder, but claims he doesn't remember the killer's face.
Episode #1.17
Hyun Soo wakes up, but seemingly can't remember anything, which leaves Ji Wook suspicious. The firm looks deeper into Hyun Soo's past, as he is presented with his own belongings to help jog his memory.
Episode #1.18
Hyun Soo's whereabouts are unknown, and no one knows just how much of his memory has returned. Ji Wook must tell Bong Hee the truth about their parents' deaths. District Attorney Jang re-examines his son's murder case.
Episode #1.19
District Attorney Jang and Hyun Soo disappear together. Ji Wook and Bong Hee search for them, afraid of what might happen. Hyun Soo's trial begins, but Ji Wook doesn't plan to charge him with murder. Instead, he comes up with a new plan.
Episode #1.20
Bong Hee worries about all that could go wrong if she gets back together with Ji Wook. Hyun Soo's final trial arrives. A new case causes conflict between Bong Hee and Ji Wook as they learn more about how to love each other.
