Akira Uchikata

After Isao has reached retirement, he receives a phone call from an ex- elementary school classmate Norio inviting him to a reunion. During the reunion, none of them can claim to have had a wonderful life since graduating from primary school and have their respective problems now. It leads them to rethink that their lives are far from over and that there is still hope for them even at this stage of their lives. They encounter many unexpected happenings during the journey which reminds them of the excitement they experienced as kids and find new hope in their bleak lives.

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.

Yuri Ishikawa and her team try to crack unresolved cold cases in Kanagawa Prefecture, Japan.

Two detectives communicate through a walkie-talkie to solve a cold case. One detective exists in the present day, and the other detective exists 15 years in the past.

After a junior detective dies in the line of duty during an active investigation, Detective Masaki Sara of the Tokyo Metropolitan Police First Investigation Division is transferred to Section 1 of the Personnel Division, the internal affairs unit that investigates officers suspected of misconduct. Still traumatized by his past, Masaki is forced to carry out his duties as a lonely outcast as his colleagues shun him as a snitch. One day, a message arrives. It's a tipoff that Saiko Minaguchi, Masaki's former colleague in the First Investigation Division, is leaking confidential information. Although Masaki is reluctant to investigate someone he used to work with, he obeys his boss and starts looking into Saiko. He soon discovers a link to an unresolved murder and some buried facts about the death of his junior detective Saito. What shocking truth awaits Masaki beyond his suspicions and inner conflict?

Eleven high school classmates awaken, restrained to a large dining room. While fearing for their lives, they question a motive to this bizarre act.