Yang Jung Guk is a con artist that has pride in his job. As his last con before he retires, he targets Park Sang Pil. Jung Guk with his team of con artists, he manages to get 60 million dollars. Now with this money, he plans to marry his girlfriend and live a happy life. Meanwhile, Kim Mi Young, a detective, is on duty to catch criminals but sees her boyfriend’s car park at a motel.

Even though Jung Guk proposes to his girlfriend after a successful con, he is dumped by her. On the other hand, Mi Young dumps his boyfriend for cheating on her. The two are saddened by their breakups and heads over to a club. The two get to know each other over a drink and starts dating. They are madly in love with each other, and without knowing each other's jobs, they get married.

Park Hoo Ja is successful moneylender that plans to avenge her father for her ambition. Her father was tricked by none other than Jung Gook. She plans to kill him and get it over with. But Jung Gook senses something is wrong and gets away from Hoo Ja and the police who tried to apprehend him.

After accidentally beating up a passer-by who happens to be a vicious serial killer, Jung Gook becomes a national sensation. Whenever people see Jung Gook, they flock over to him and ask him to take a picture together. Since people are always around him, Hoo Ja withdraws from killing Jung Gook for now and focuses on winning over assemblymen to help her business.

While heading home after a heated conversation with Mi Young, Jung Gook is abducted by Hoo Ja’s henchmen. Hoo Ja offers to spare him if he promises to work for her and become an assemblyman. Jung Gook refuses her offer, but she makes a threat he can’t overlook.

In hopes to save him and Mi Young, Jung Gook accepts Hoo Ja’s offer. Now, a con artist will have to work for a moneylender and become an assemblyman. Jung Gook now has to win the election if he wants to survive and save Mi Young from danger. Hoo Ja, however, gets a surprise visit from the police.

To win the election, Jung Gook needs an election specialist. But the only that may help is ex-assemblyman Kim Joo Myung. As Jung Gook reveals that he is a con artist, he must prove his worth by showing his capability. Joo Myung tells Jung Gook to sell off a building at a ridiculous price.

Mi Young starts investigating into Baekkyung Capital and unknowingly comes across the scam Jung Gook is trying to pull. As Jung Gook finds out that Mi Young is snooping around his plan, he makes changes to his plan. If he gets caught by Mi Young and her team, his deal with Hoo Ja will be over.

With the document Jung Gook acquired, he plans to counterattack Hoo Ja and Joo Myung. He asks his father to use the building document to apply for a loan from every bank possible. As soon as Hoo Ja hears the news of Jung Gook's plan, she orders her henchmen to capture him.

Jung Gook submits his application to run for the Assembly and makes a public announcement of his plan. He is now against two other candidates that are affiliated with political parties. While the other candidates have a professional team that helps them, Jung Gook doesn't have much to work with.

As the only one on Jung Gook's team with any political experience, Joo Myung tells Jung Gook should stick to his forte to win the election. The other candidates' strategies have flaws, Jung Gook plans to use sweet talk to appeal to the public and win the public over. Meanwhile, the Baekkyung Capital will be going through some family power struggle after the eldest daughter is released from jail.

Mi Young finds out about Jung Gook meeting with Hoo Ja, but she gets a few facts wrong. Mi Young believes Jung Gook owes Hoo Ja money. And she thinks that is why he is following Hoo Ja's orders. Infuriated by this, Mi Young barges into Hoo Ja's office to talk.

Although Jung Gook's secret didn't get revealed, he still has to win the election. Jung Gook and his team are surprised by the pre-election poll. Meanwhile, Hoo Ja plans to take care of Mi Young for getting on her nerves..

To get more exposure and votes, the top two candidates and Jung Gook are to go on a televised debate. Jung Gook is given a script by Joo Myung to follow but is struggling to say something he doesn't believe. Meanwhile, Mi Young plans to apprehend Hoo Ja but is told to hold off for the time being.

Right before the debate goes on air, Jung Gook finds out about Joo Myung's complaint filed against Mi Young. Jung Gook is angered by this and decides to go off script. During the debate, he speaks from the heart and even goes against his campaign pledges.

Mi Young arrests Hoo Ja and his subordinates, but it turns out Hoo Ja tricked the police. For arresting someone without evidence, Hoo Ja is released immediately. Meanwhile, Jung Gook feels betrayed and frustrated by Sang Jin's change of words. Out of frustration, Jung Gook blurts out something he shouldn't.

The debate is over, and the candidates are back to the streets to earn more votes. Hoo Ja, however, is displeased by Jung Gook for going against the script and apprehends him. If Jung Gook's ratings drop, Hoo Ja will kill Jung Gook. Meanwhile, Mi Young is forced to take a leave of absence.

Joo Myung gathers his campaign team and directs them on a blank whiteboard, telling them that this is their strategy. With that, Mi Young who has decided to help out and the rest head out to win the hearts of the public. Meanwhile, Hoo Ja appears at Han Sang Jin's office to make a deal with him putting him in a tight spot.

After Jung Gook's rising ratings, Hoo Ja makes an offer to Sang Jin. As Sang Jin isn't overwhelming the other candidates, he is reluctant but takes Hoo Ja's offer. In the process, Hoo Ja tells Jung Gook to announce his support for Sang Jin and to withdraw from the election.

As Candidate Kang Soo Il withdraws from the election and announces his support for Jung Gook, Jung Gook is in the lead. Sang Jin is desperate and asks Hoo Ja to make Jung Gook withdraw, but she no longer wishes to help either one. As he is given no choice, he plans to expose Jung Gook's secret to the public and Mi Young.

Jung Gook beats Sang Jin in the election and becomes an assemblyman. After receiving his badge, Hoo Ja calls Jung Gook into her office to chat. Hoo Ja tells Jung Gook something that he had never expected from her.

As Jung Gook messed up Hoo Ja's plan by getting rid of six assemblymen, Hoo Ja comes up with another plan. She plans to pressure the opposition by criticizing the opposing party's minister candidate and make them compromise. However, Jung Gook and his team are having trouble finding good information.

After Jung Gook's harsh criticisms, Chae Jin steps down which ruins the plan Hoo Ja had in mind. Even though both parties aren't willing to negotiate, Assemblyman Kim Nam Hwa works up another plan to call a general meeting. Jung Gook, however, doesn't plan to sit around when the assemblymen are making a dirty deal.

Even though Hoo Ja prepared, she gets detained due to Jung Gook's con. With the devious loan shark out of the way, Jung Gook wants to perform the duties of a right assemblyman. He asks Joo Myung for help and attempts to befriend other assemblymen to get support.

With Joo Myung's confession, Assemblyman Kim Nam Hwa has lost influence over other assemblymen. Other Nationalist assemblymen are now free to vote on the repeal of Interest Rate Regulation Act. Both major parties, however, still refuse to hold a general meeting. Jung Gook plans to get both party representatives to come to an agreement and hold a general meeting.

Jung Gook holds a press conference of his own after Nam Hwa accuses Jung Gook of being a con artist. At the press conference, he reveals that he is, in fact, a con artist and announces he will turn himself in. Mi Young is devastated by her husband's secret and gets swarmed by journalists. As she didn't know her husband's crimes and identity, she plans to resign.