Ms.Ko KTV

In the park, Jung Hyun-soo says to Ko Chang-ho that he can not tolerate any more mistakes.  He threatens to help him until four more people to disappear after three that are already gone to repay Chan-ho's mistake. 

Ji-wook cannot get sleep at night and is looking at Bong-hee during the day.

Bong-hee tells Eun-hyuk that she gave up her loving heart towards Ji-wook about 98%. But last night, she confessed to loving him until she dies. Eun-hyuk heard of it and wanted to help her. 

Eun-hyuk approached Bong-hee and told her to laugh. Ji-wook looking down them from the second floor doesn't feel pleased. He tried to sprinkled water over them but didn't because of Mr. Bang. 

Ji-wook finds that Bong-hee is meeting Jung Hyun-soo and follows her. 

Jung Hyun-soo notices that Ji-wook is suspicious of him.

Bong-hee confessed her feelings to Mom about Ji-wook. Ji-wook's mother listens to the story behind and wonders who he is. 

Ji-wook can not erase his thoughts about Jung Hyun-soo case. He remembered that there was Chan-ho in the trial.

Ji-wook, who visited Chan-ho, notices that the relationship between Chan-ho and Hyun-soo is not ordinary. He handed his business card to Chan-ho and told him to contact him at any time when he needs help. 

Ko Chan-ho hesitates with trouble. 

Ji-wook wants to find the motive of Chef Yang's murderer. Ji-wook sees the note on the missing frame that found by Yoo-jung. They guess the motive of the murderer may be revenge. 

Meanwhile, Chan-ho calls Ji-wook but he didn't pick up. Chan-ho, then calls Bong-hee and tells her he knows who bought the shoes for her. Jeong Hyun-soo was tapping Chan-ho.

Bong-hee calls Ji-wook before she goes to see Chan-ho, but Ji-wook does not receive it.

Ji-wook, who comes out of Yoo-jung's office, sees Bong-hee's text late that she is going to meet Chan-ho at a park. 

Chan-ho is waiting for Bong-hee. Hyun-soo calls Chan-ho and says it hard to find him for it is too dark. Then he appears behind Chan-ho. 

Bonghee came to the park to meet Chan-ho, but she is too scared and just sits on the parking lot. Ji-wook is relieved to see her. 

Ji-wook, who met Bong-hee, scolds her differently from his heart. Bong-hee feels not fair. Bong-hee wipes her tears and misses the sys lens.

Bong-hee and Ji-wook came back home. 

Ji-wook says sorry to her for his temper. Bong-hee steps closer to his face to check if it is genuine. Ji-wook then pulls Bong-hee towards him and embraces, and ...

Ji-wook is suspicious of Hyun-soo because if one is false, everything is a lie. Hiding this doubt, Ji-wook asks Hyun-soo of his background at a drink. 

The drunken Bong-hee is thirsty at the bed, and someone brings water.

After a while, Mr. Bang serves Bong-hee who is thirsty again. She first couldn't notice his face and confused with Ji-wook but was surprised after recognizing Mr. Bang's face. 

Ji-wook tells Mr. Bang to investigate further about Jung Hyun-soo in confidential. 

Then, Ji-wook told him that he was very thankful for working with him. Mr. Bang said it was his pleasure. However, the fact is that he said last night in a game of truth that he was regretted to quit his previous job and moved to here. 

Bong-hee, who heard the stories of the two, asks what they are up for Jung Hyun-soo. However, Ji-wook does not say to Bong-hee who consider Hyun-soo's case as her own. 

Ji-wook sees the sister of Chef Yang who was out after her interrogation and asks of the missing frame. She didn't say anything. 

Jung Hyun-soo answers the question to Bong-hee, who said that she did not understand why the criminal committed such a thing to her and Hee-joon at the drinking party.

It was because she saw something she should not see. 

It was because she was not there but Hee-joon. 

He monologs the reason Bong-hee is still alive is that she didn't recognize and that he will remain a good person as long as she doesn't notice his face. 

Hyun-soo calls Bong-hee to say thank you. Ji-wook is curious of the call. Yoo-jung is jealous looking at them together. 

Bong-hee became frozen meeting the district attorney at the elevator.

Ji-wook sends Bong-hee first, and he says to the district attorney to not hurt her again otherwise he won't stay calm. 

Bong-hee doesn't want Ji-wook to get involved her case anymore. She told him to stop caring about her, but she feels hurtful speaking that to him. Ji-wook looks at Bong-hee from afar. 

Eun Hyuk came to the park alone on his birthday. Yoo-jung and Ji-wook are old friends and remember the birthday of Eunhyuk. Yoo-jung goes to the park to give a gift, Ji-wook was struggling in sending a text but ended up sending a letter only by accident. 

Yoo-jung asks Eun-hyuk if he really hates her. He says yes. But it is not true. Last night, he confessed that he hated a person, but ironically, he cannot hate or dislike the person. 

On the other hand, Hyun-soo meets Chan-ho and asks the situation where his trace remains on the scene. In the answer of Chan-ho that it seems to be a mistake, Hyun-soo sheds a laugh.

Ji-wook looks at Bong-hee turning back while sleeping then leaves the room. Eun-hyuk finds out that he gave Yoo-jung's address to a chauffeur service agent, rather than his. 

The next morning, Bong-hee asked to unlock Ji-wook's computer to review CCTV data. Ji-wook stretches out his hands without looking at her, but his eyes follow her leaving. 

Eun-hyuk finds out that Chef Yang had complicated relationships and his sister always looked after him. Bong-hee also discovered his sister's car from new CCTV data. Ji-wook was excited to see new evidence and touched Bong-hee's head. It became a little bit awkward, but Bong-hee is happy. 

Ji-wook proved the perjury of Yang's sister in the trial, and he almost confirmed the innocence of Jung Hyun-soo, but he is not good at heart.

He was exhausted that night. Bong-hee tried to untie his tie. Ji-wook is tired but unable to sleep. He asks Bong-hee to stay with him for five minutes. 

Jung Hyun-soo is acquitted. Chan-ho is sitting in the back. Everyone but Ji-wook enjoyed their first win. 

At the celebration, Ji-wook is contacted by the cafe couple. Ji-wook figured out that Jung Hyun-soo's testimony was false after meeting the couple. 

Meanwhile, Bong-hee sings the song she heard from the killer and says her will to catch the real criminal. 

In fact, Jung Hyun-soo is the serial killer. 

Ji-wook who returns with raising doubts meets Jung Hyun-soo on the way. 

In addition to the letter, Bong-hee prepares tea and vegetables that good for insomnia for Ji-wook. Ji-wook seems to be ready for a meal for two people even after her leave, and he feels the absence of Bong-hee.

The next day, Ji-wook submits his official resignation. He then scouts the section chief Bang as a clerk and converts the house into an office.

Bong-hee works as a teacher in the Taekwondo studio, but she can not stop thinking of Ji-wook. 

At that time, Ji-wook comes to the studio and asks Bong-hee to work together in his office. Bong-hee first refuses, saying that she doesn't want to be a burden to him anymore, but soon she follows him. 

Bong-hee and Ji-wook come back to the office where CEO Byun, Eun-hyuk, and Section Chief Bang are already there. 

Eun-hyuk wants to converse with Ji-wook to restore their friendship. They sit on the bench in the park, but they get into a fight with the students who are passing by.

In fact, Eun-hyuk loved Yoo-jung. Eun-hyuk saw Yoo-jung asking Ji-wook to begin their relationship as lovers on the way he actually was going to confess his love to her. After seeing that, Eun-hyun tries to give up on her but failed. It ended up having a night with her. Eun-hyun, however, cannot tell his story to Ji-wook. 

Nevertheless, Ji-wook cannot hate Eun-hyuk and Yoo-jung. They were the only friends Ji-wook had for a lifetime.

Ji-wook came back home is treated by Bong-hee. He then falls asleep next to Bong-hee. Looking at him sleeping, Bong-hee is curious if his insomnia is for real. 

On the next day, CEO Byun whines to recruit Eun-hyuk. Ji-wook accepts that. Ji-wook, Eun-hyun and Bong-hee in the office together talk about another murder case of famous chef Yang on TV.