Ryuji Yamamoto

Detective Ukyo Sugishita confronts crime on the basis of his own convictions. He has a partner that works for him in the Special Task Unit. For the first 7 seasons, Ukyo’s first partner is Kaoru Kameyama. He is a good-natured, hot-tempered, straightforward and somewhat scattered detective. Beginning in Season 8, Takeru Kanbe replaces Kameyama. Contrary to his predecessor, Takeru is a lanky, cool, conceited and confident detective. From Season 11 to Season 13, Ukyo’s partner is a young detective Toru Kai. Toru is a son of Deputy Director-General of The National Police Agency. But he became a detective by his own effort. And starting with Season 14, Ukyo’s current partner is Wataru Kaburagi, an elite bureaucrat who came to the Metropolitan Police Department on temporary assignment. As the first partner without any career of a police officer, he will face challenging cases together with Ukyo.

A high school girl, Izumi Gojo, who has been found guilty of murder, falls into the sea and disappears when running away from the police. However, a mysterious group rescues her and had her undertake training to transform her into an assassin. Years later, Izumi seeks to escape the group.

Sanpuu Minami is a popular shojo manga artist who is believed by many to be a woman. In actuality, though, his real identity is Eichizen Gotaro, a single father with two children. One day, he receives a notification from the court that he has been appointed as a prosecutor's office examiner. With the deadline for his manga approaching, he requests a withdrawal but this is declined due to a lack of special circumstances. He joins 11 other people randomly selected from ordinary Japanese citizens, who each have unique personalities and give off the impression that they would like to get this over and done with. At first, Gotaro has a negative attitude towards the Prosecution Review Board, but as he gets closer to the thoughts of those behind the case, he starts to appreciate how important this job is.

The body of a person who died an unnatural death is discovered encased in mortar like concrete in the basement of an abandoned building. Why was the person murdered this way? The next day, the investigation task force receives a phone call from the criminal who calls himself Tremi during a meeting to discuss the investigation of the case. Then, in a short time after her transfer to the First Investigative Division, Kisaragi Toko becomes the negotiator. Tremi mocks and provokes the police while offering hints regarding the murder. A second murder soon occurs just as Tremi had warned. The victim's head has been covered with concrete as they had expected. What is the criminal's motive and why is the criminal fixated with concrete? The criminal's surprising actual target soon emerges...

Akiho Takeda is assigned to #3 investigation team for The Tokyo Metropolitan Police Department. On her first day at work, a burglary takes place at a jewelry store in Shibuya. The case though is taken by the #1 investigation team which Akiho hoped to join. Nevertheless, Akiho goes secretly to the jewelry store where the theft took place. Later, a safe at a jewelry store in Roppongi is broken into. Stolen from the safe is the diamond called "Besu". The "Besu" is one of three diamonds that makes up the "Kuraida Family's Three Sisters". The other two diamonds are "Ani" and "Kyasari". The diamond "Ani" was stolen from the jewelry store in Shibuya, that occurred a few days earlier. Several people believe the two diamond thefts were done by the same person(s), but Akiho mentions the techniques used by thieves are different. Yet, Akiho believes there must be a connection between the two cases.

High school student Hoshi Izumi loses her father suddenly in an accident. One day, Sakuma, the waka gashira of a small and weak Yakuza gang in Asakusa - the Medaka Gumi - pays Izumi a visit along with the gang members. The death of their former kumicho (Boss) puts Medaka Gumi on the verge of a breakup. Therefore, Sakuma begs Izumi, the former boss's only distant relative left, to succeed to the kumicho position. Izumi is taken by surprise and keeps refusing at first. However, she ends up becoming the 8th kumicho of the Medaka Gumi! The police tell her that her father's death may possibly be a homicide case. There's also Mayumi, a mysterious woman staring closely at Izumi's father's photograph at his funeral. The situation becomes complicated when the drug-dealing vicious yakuza, Hamaguchi Gumi, comes into the picture as well as Sandaiji Hajime, a politician whose public stance is to eliminate drugs.

Detective Ukyo Sugishita confronts crime on the basis of his own convictions. He has a partner that works for him in the Special Task Unit. For the first 7 seasons, Ukyo’s first partner is Kaoru Kameyama. He is a good-natured, hot-tempered, straightforward and somewhat scattered detective. Beginning in Season 8, Takeru Kanbe replaces Kameyama. Contrary to his predecessor, Takeru is a lanky, cool, conceited and confident detective. From Season 11 to Season 13, Ukyo’s partner is a young detective Toru Kai. Toru is a son of Deputy Director-General of The National Police Agency. But he became a detective by his own effort. And starting with Season 14, Ukyo’s current partner is Wataru Kaburagi, an elite bureaucrat who came to the Metropolitan Police Department on temporary assignment. As the first partner without any career of a police officer, he will face challenging cases together with Ukyo.

A high school girl, Izumi Gojo, who has been found guilty of murder, falls into the sea and disappears when running away from the police. However, a mysterious group rescues her and had her undertake training to transform her into an assassin. Years later, Izumi seeks to escape the group.

Sanpuu Minami is a popular shojo manga artist who is believed by many to be a woman. In actuality, though, his real identity is Eichizen Gotaro, a single father with two children. One day, he receives a notification from the court that he has been appointed as a prosecutor's office examiner. With the deadline for his manga approaching, he requests a withdrawal but this is declined due to a lack of special circumstances. He joins 11 other people randomly selected from ordinary Japanese citizens, who each have unique personalities and give off the impression that they would like to get this over and done with. At first, Gotaro has a negative attitude towards the Prosecution Review Board, but as he gets closer to the thoughts of those behind the case, he starts to appreciate how important this job is.

The body of a person who died an unnatural death is discovered encased in mortar like concrete in the basement of an abandoned building. Why was the person murdered this way? The next day, the investigation task force receives a phone call from the criminal who calls himself Tremi during a meeting to discuss the investigation of the case. Then, in a short time after her transfer to the First Investigative Division, Kisaragi Toko becomes the negotiator. Tremi mocks and provokes the police while offering hints regarding the murder. A second murder soon occurs just as Tremi had warned. The victim's head has been covered with concrete as they had expected. What is the criminal's motive and why is the criminal fixated with concrete? The criminal's surprising actual target soon emerges...

Akiho Takeda is assigned to #3 investigation team for The Tokyo Metropolitan Police Department. On her first day at work, a burglary takes place at a jewelry store in Shibuya. The case though is taken by the #1 investigation team which Akiho hoped to join. Nevertheless, Akiho goes secretly to the jewelry store where the theft took place. Later, a safe at a jewelry store in Roppongi is broken into. Stolen from the safe is the diamond called "Besu". The "Besu" is one of three diamonds that makes up the "Kuraida Family's Three Sisters". The other two diamonds are "Ani" and "Kyasari". The diamond "Ani" was stolen from the jewelry store in Shibuya, that occurred a few days earlier. Several people believe the two diamond thefts were done by the same person(s), but Akiho mentions the techniques used by thieves are different. Yet, Akiho believes there must be a connection between the two cases.

High school student Hoshi Izumi loses her father suddenly in an accident. One day, Sakuma, the waka gashira of a small and weak Yakuza gang in Asakusa - the Medaka Gumi - pays Izumi a visit along with the gang members. The death of their former kumicho (Boss) puts Medaka Gumi on the verge of a breakup. Therefore, Sakuma begs Izumi, the former boss's only distant relative left, to succeed to the kumicho position. Izumi is taken by surprise and keeps refusing at first. However, she ends up becoming the 8th kumicho of the Medaka Gumi! The police tell her that her father's death may possibly be a homicide case. There's also Mayumi, a mysterious woman staring closely at Izumi's father's photograph at his funeral. The situation becomes complicated when the drug-dealing vicious yakuza, Hamaguchi Gumi, comes into the picture as well as Sandaiji Hajime, a politician whose public stance is to eliminate drugs.