Kuryu Kohei is a newcomer prosecutor from Aomori of the Tokyo Prosecutor's Office. Upon his transfer, he is immediately put in charge of a corruption case involving a congressman and an underwear theft. His new colleagues do not seem to put their trust in him because of his nonchalant attitude. A rumor seems to be going around the office involving Amamiya, Chief, and Egami.

A man falls to his death during a fight that involves a politician's son. As the prosecutor in charge, Kuryu investigates the case while his other work had to be delegated to his colleagues. Tired of his antics, they all complain. At the same time, Egami doesn't give up on Amamiya, and Shibayama continues his affair with Nakamura.

Amamiya and Egami drink at a bar while talking about relationships. They encounter a couple fighting over something. Drunk Amamiya confronts the couple and Kuryu who is nearby walks over to stop her from interfering with the man who is holding a knife. The man ends up wounding the woman on her wrist. The woman then sues the man for criminal injury. Meantime, the story unfolds as Kuryu and Amamiya discover that the woman is actually involved in a marriage fraud.

A female university student is murdered by her stalker. The suspect, Oyamada Shuji, is hospitalized but he soon flees, resulting in the risk of the Tokyo Prosecutor's Office losing face, and even Egami's job. Meanwhile, Shibayama gets headhunted by a law firm. In the midst of that, Kuryu investigates a dine and dash case.

Kuryu and Amamiya investigate an affair that resulted in the husband slashing the wife with a kitchen knife. Back in the office, an uproar is caused by a rumor of an affair of a detective, and Amamiya's sudden confession of having a boyfriend. Misuzu is unhappy about Shibayama's reaction to the affair rumors.

A judo practitioner, Yasuda, is prosecuted for stabbing and killing an off-duty patrol officer. Kuryu senses that something is fishy since it doesn't make sense for someone with a high rank in judo to carry a knife around. The president of a loan shark ring, Mr. Otagawa, is then arrested by the chief police after Yasuda admits that he is only following orders to turn himself in. How can Kuryu prove that Mr. Otagawa is responsible for the murder and not Yasuda?

A new paralegal, Masaki, arrives to replace Amamiya as she is working for two prosecutors at once. Endo and Suetsugu are tiring of how they are being treated at work and join Masaki in opening a crepe shop. Kuryu is set to make a managing director who molested his employees to admit his misconduct.

Kuryu meets his old fling, Tatsumi Eriko, who is coincidently hired as the defense attorney for the same medical malpractice case he's working on. Later, he finds out that she's doing all sorts of things to conceal the truth just to win the case. In the meantime, the romantic interest between Amamiya and Kuryu gradually blooms.

Amamiya encounters a dangerous situation on the way to work. Unbeknownst to her, it is the beginning of serial attacks towards her. Furthermore, an unknown man attacks the prosecutor's office keeping everyone uneasy to go to the office. As they investigate the list of suspects, she ends up staying with Kuryu due to the danger of being targeted.

A news reporter, Enomoto Yuki, is the target of an attack from an unknown man where Kuryu decides not to prosecute the suspect. She publicizes the story, but the suspect ends up committing suicide. The public questions Kuryu's responsibility as a prosecutor and his past is revealed.

Due to the criticisms Kuryu received from the press, he is ordered to be transferred to Ishigaki Island in ten days. His last case revolves around a security guard who was murdered in a stadium. However, the Special Investigation Unit steps in to question the same suspect. Will Kuryu be able to close the case before his transfer?

Kuryu is transferred back to Tokyo Prosecutor's Office. His first case upon his return is a brawl at a pub where an employee was pushed down the stairs. Little did he know that the suspect in this case is the same person that is suspected of a huge jewel theft 15 years ago. As the statute of limitations will expire in three days, will Kuryu be able to find out if the suspect was the actual criminal?

An elite, Katsumata, is accused of sexual assault towards a woman. He admits the charges saying that it just happened, but with Kuryu's investigation, the truth is more than what is seen on the surface. However, he has to go against Katsumata's lawyer's influence on the victim to proceed with a private settlement. Asagi is dissatisfied with others' attitudes towards her and fights back.

Kuryu receives a call from Josai Police Department, notifying the death of Saeki Wataru from a heart attack. The case concerns a fight between two men, resulting in the death of the victim, Hasegawa Yosuke. Meanwhile, Kuryu handles a case of drug possession of a flight attendant and Asagi struggles working overtime.

Nakamura Misuzu, Kuryu's former colleague, comes to the office to investigate a health product scam with Uno. Rivalry ensues between the prosecutors and paralegals. Meanwhile, Kuryu is in charge of a manhole cover theft with Asagi, and the suspect is an old friend of Asagi's. Asagi and the suspect's past are revealed one after another.

As the prosecutor's office is bombarded with cases, Kawajiri is made to take on a case of bag theft. Challenges arise as all the witnesses are young children. While he struggles to close the case, Kawajiri loses his confidence as a prosecutor and considers switching to a lawyer under his friend's persuasion.

Endo is being arrested for attempted murder. As the interrogation is conducted by the Special Investigation Unit, his colleagues secretly investigate the case to find the real culprit. Endo feels sad as he thinks that his colleagues do not care about him.

A man is charged for assaulting his girlfriend who lives with him. The victim runs off to her parents' house in Atami, where Kuryu and Asagi go to talk to her about proceedings with the prosecution. While Uno is jealous that Asagi is going away with Kuryu, Tamura is jealous of Baba's lawyer ex-husband who appears at their office to discuss with Baba about evidence submission for a case.

Gondo Akira, a member of Kawato Clan, is arrested for the murder of a member of another gang, Obikikai Clan. He admits to his crime, but Kuryu is not convinced that he is the real criminal. As he gets deeper into the investigation, Kuryu finds himself in danger as Kawato Clan targets and threatens him.

Four university students have been detained as suspects for their friend's murder that happened in a public toilet. The victim died due to a brain injury caused by blunt trauma. Since there are four suspects, the four prosecutors have to work as a team to catch the person who gave the victim his final blow.

Kuryu and Asagi are nominated by their former colleague, Egami, to act as support for a big case in the Special Investigation Unit. Meanwhile, Tamura and Endo are on a case of murder involving Nagumo Toshiyuki who remains silent throughout the interrogations. If they choose to prosecute Nagumo, they will expose a false charge that was made for an old case where a life was taken. What will they choose to do?

Kuryu raises five other past similar cases in court in which the suspect is Nagumo Toshiyuki. Prosecutors from Josai Branch seek help from Kokubu Hideo who was the prosecutor in charge of the first case 15 years ago. Although prosecutors from other branches are against their actions, they never give up and just work harder.