Hideya Hamada

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.

Izumi Sakuragi is a new police sergeant with the Special Investigations Office, which was set up within the Metropolitan Police in November last year. The new investigation team uses DNA analysis and the latest in forensics science to investigate cold cases as well as cases suspected to involve missing persons.

Michio Iruma is a former lawyer. He now works as a judge in the first criminal court (commonly known as "Ichikei") of the Tokyo District Court. He is an unusual judge. To avoid issuing wrong judgements, Michio Iruma seeks out the truth in cases by performing on-site inspections by himself. Due to this, lawyers and prosecutors are afraid of him.

Naomi Oda (Ryoko Hirosue) aspired to become a curator at an art gallery, but she currently works in a department store. Her job is to cater to VIP customers. She is not happy with her current position. One day, her friend since their college days, Kanako Hattori (Yuki Uchida) visits Naomi at her apartment. Kanako tells Naomi that she gets beaten by her husband Tatsuro. Her husband is an elite employee at a bank and lashes out at his wife when stressed. Naomi tells her friend to divorce her husband, but Kanako is worried that her husband would kill her if she did. Her husband's violent behavior controls Kanako. One day, Naomi happens to see a Chinese stowaway who looks just like Kanako's husband. This causes Naomi to think of a perfect plan to kill Kanako's husband. Naomi and Kanako soon carry out their plan.

A fashion design assistant faces buried truths when her abusive husband, presumed dead, returns with amnesia and an inexplicable gentleness.

Yu Takanashi, a former surgeon, joins the Comprehensive Diagnosis Department at Tenikai General Hospital, where he works alongside the brilliant yet eccentric Takao Ameku to solve mysterious medical cases.

A judge with hidden ASD and ADHD struggles to maintain a 'normal' facade at a new court while his neurodivergent perspective ironically helps him uncover the concealed truths in complex and challenging cases.

Kankuro Haruhara is a research officer at the Meteorological Research Institute. With his handsome appearance and fresh smile, he appears on the weather segment of a news program. He is also a chief at the SDM (Special Disaster Management) Headquarters, whose purpose is to protect lives from weather disasters. While he is excellent at his work and possesses a vast knowledge of meteorology, he is often resented by his colleagues at work due to making biting remarks. Because of Kankuro’s passion and straightforward mindset on saving lives, he eventually changes how his colleagues view him. Kankuro tries to make SDM Headquarters the best that it can be, and he also chases after a mystery.

Michio Iruma is a former lawyer. He now works as a judge in the first criminal court (commonly known as "Ichikei") of the Tokyo District Court. He is an unusual judge. To avoid issuing wrong judgements, Michio Iruma seeks out the truth in cases by performing on-site inspections by himself. Due to this, lawyers and prosecutors are afraid of him.

A fashion design assistant faces buried truths when her abusive husband, presumed dead, returns with amnesia and an inexplicable gentleness.