NHK’s 50th anniversary memorial drama serial. This drama consisting of several short stories starring some of the well known actors and actress of Japan today. A ball floats from the river’s source to the sea, unlocking the portrayal of six love stories across the four seasons of the year.

The musician accidentally released the female ghost Hua Dan, composing a poignant ghost love, exposing the truth of being killed many years ago, and the love that has entangled two lives is facing separation again.

A car accident changed Ray's life completely. After the surgery, her sense of smell improved exceptionally, even better than a dog's sense. She then used this special sense to gain extra money by helping people investigating simple cases. One day, Ray happened to meet and remember a particular smell from a thief's body and so she was invited to join the police detective team by Poom, the inspector who was seeking the most-wanted thief. While working as a spy for the police, Ray meets Q, a famous DJ with a secret.

Kiichi is a former policer officer and his younger sister Yuki is a genius white hat hacker. Five years ago, their father Takashi, who worked as a police officer, was murdered by an unknown person in front of them. They had already lost their mother at an early age and their father Takashi raised them by himself. He was the most precious person in their lives. After their father’s death, Kiichi quit his job as a police officer and chased after his father's killer with his younger sister. But, they did not have any clues on the identity of their father's killer except that he had a phoenix tattoo on the back of his hand. Now, Kiichi and Yuki finally get into a criminal organization, which is the largest fraud group in Japan. At the top of the criminal organization is someone named Phoenix. They try to get close to this mysterious person.

Episodes: 10

Aired On: Saturday

Duration: 54 min.

Content Rating: Not Yet Rated

The arrogant Yabe Kenzo who has been unwittingly solving difficult cases thanks to a combination of good luck and mix-ups around him, returns with his subordinate Akiba Harando, the computer nerd. Although the submissive Akiba does not shrink back from Yabe’s treatment, something unusual arises in their relationship this time. Yabe finds himself squaring off against his strongest rival to date. Genius scientist Deep Manabu who has invented “God Eye Joe”, artificial intelligence customized for criminal investigations, has been solving successive cases that even the FBI and Scotland Yard have given up on. He announces that he will use it to catch a murderer called the “referee of the dark” whom the Japanese police are helpless against. With no room to maneuver, the police commissioner assigns Yabe to be the full-time investigator in order shift responsibility. Unaware of this, Yabe heads to a hot spring area with eyewitness sightings of the “referee of the dark” in high spirits. There is a landslide and an inn is cut off like a remote island. Then a company president who is a guest at the inn is murdered. Under Yabe’s supervision, the proprietress of the inn Yamakawa Tamao and her guests split into groups to search the surroundings for clues. The murderer’s personal effects are discovered in the direction of the woods and Yabe gives chase with Akiba. Meanwhile, Deep Manabu has been at work on analyzing the case. A fierce battle of wits is about to unfold between the man with the wig and the man who uses artificial intelligence, in the investigation of this bloodthirsty killer.

Superintendent Kobayakawa Fuyuhiko is a naive career police officer who cannot read situations. He is transferred from the Tokyo Metropolitan Police Department's National Research Institute of Police Science to the newly established "anything" consultation office of Suginami Chuo Police Precinct's Community Safety Division as a result of some incident. This consultation office passes off for a new initiative to react quickly to the feedback of the public. But in reality, it is a garbage dump for people who have caused trouble and been discarded. The members of the precinct mock it as the "Zero Section". Kobayakawa's buddy is the strong-minded, foulmouthed veteran detective Terada Torami. The two of them who do not get along and the very individualistic members of the section solve difficult cases dashingly.

On Christmas morning, Fujino Ryoko finds her classmate Kashiwagi Takuya’s dead body at their snow covered school. The police and the school conclude that Kashiwagi Takuya died by suicide. At that time, an anonymous letter is delivered to Fujino Ryoko. The letter states that Kashiwagi Takuya was murdered by a group of students including Ooide Shunji. The media and SNS begin to question whether Kashiwagi Takuya really died by suicide or was he murdered. The school principal tries to take control of the narrative, but this leads to a more chaotic situation.

Fujino Ryoko is disturbed by people's reaction to Kashiwagi Takuya’s death. She asks for a trial and an unprecedented school trial begins.

Tachibana Haruka is a rookie nurse with a bright personality. Mihara Natsumi is 34-year-old veteran nurse. She is struggling at work and with her love life. While Tachibana Haruka and Mihara Natsumi work as nurses at a place that deals with life and death, they laugh and cry. The two women grow as persons in the process.