
Narrates the events and cases encountered by Kaoru Utsumi, a rookie detective, and Manabu Yukawa, a university associate professor, while the two pair up to solve many mysterious cases.

Two transfer students, Takashi Mitsuhashi and Shinji Itō, tired of their boring normal life and unpopularity, decide to take their arrival at a new school as an opportunity to reinvent their image, and become delinquents. The duo set out on various misadventures to become the greatest delinquents in all Japan!

Ieji Hisashi, a salaryman who works for a securities company, has a fuzzy memory of the recent five years because of an accident at his job posting. His wife of five years, Megumi and their 4-year-old son seem to wear masks. He can neither tell their facial expressions nor their emotions. He also struggles about his love for them. On the other hand, Ieji feels an attachment to his ex-wife, whom he divorced five years ago, and their daughter. What sort of days did he have in those five years which are a blank to him? Ieji sets out on a journey to find his past self with a mysterious bunch of 10 keys that he has. He becomes aware that he was a cold, career-minded man before the accident, and the persona that is gradually revealed is beyond the imagination of his present kindhearted self.

A brother and sister learn their biological grandfather was a kamikaze pilot who died during World War II. During their research into his life, they get conflicting accounts from his former comrades about his character and how he joined his squadron.

Tsukuda Kohei was once a researcher with the Aerospace and Science Exploration Agency and now runs Tsukuda Industries, a small factory which was left by his father. Although his relationship with his teenage daughter Rina is somewhat strained, business at Tsukuda Industries has gradually started to improve. But Tsukuda puts too much effort into his dream of developing a rocket engine and business declines little by little. One day, a major client suddenly declares that it is dropping Tsukuda Industries. Then, Tsukuda Industries gets sued by a big rival company, Nakashima Industries, for patent infringement. Tsukuda Industries’ reputation is hurt and financing from banks is also in a desperate situation. In the midst of this, Teikoku Heavy Industries, one of Japan’s leading corporations, offers to buy a patent which Tsukuda Industries possesses for 2 billion yen

In the fictional town of Mahoro on the outskirts of Tokyo is Tada Benriken, a small business which does odd jobs. Its owner is the solemn and level-headed Tada Keisuke, and his unexpected guest, the easygoing but vague Gyoten Haruhiko, a former junior high school classmate who showed up one day and started to sponge on him. The two of them get on like oil and water, and yet are somehow inseparable. They receive queer, dubious incoming odd job requests which they accept, and what comes into view are the friendship between them as well as the backgrounds of their clients.

Saburo is a high school student good in sports, but not very good with his studies. One day, Saburo travels back in time and arrives in the Sengoku period of 1549. There, Saburo meets Nobunaga Oda who looks and sounds just like Saburo. Nobunaga Oda is the son of a warlord and magistrate of the lower Owari Province. Nobunaga Oda though is physically weak and he asks Saburo to take his place. Then, Saburo as Nobunaga Oda attempts to unify the country of Japan.

In a residential area, a man is murdered by another man, who broke into his apartment. Sergeant Kizaki, who is working near the area, hears a gunshot and runs towards the apartment. Detective Oomura already is at the scene of the crime.

Devastated at the death of her four-year-old daughter, a grieving middle school teacher is horrified to discover that her students aren't as innocent as she thinks.

Enomoto Kei is a security "otaku" working for a security firm, devoted to improving the securities system on a daily basis. He is not an easy person to familiarize oneself with, always collected and calm, unapproachable, a maniac in Physics, Science, Architecture and profound in other basic theoretical foundation. He is certain and proud of the fact that there is no key which he cannot unlock. One day, Kei is asked to help reveal a mystery behind a locked room murderer. While he lacks any interest in solving the mystery, he is inevitably intrigued by the term, "Closed Doors" and decides to take on the position. He works side by side with Aoto Junko and Serizawa Gou, who are lawyers working at a major law firm. Junko is pure and forward, acting upon her instincts while Serizawa is a prideful elitist who sees time as money, and therefore, will not take on any job that is unprofitable. Possessing a vast amount of knowledge and acute insightfulness, Kei is able to unlock the closed doors and unravel the secrets leading to the solution. Never before has there been a drama focused solely on closed doors.
Haru Satonaka is the captain of an ice-hockey team, a star athlete who stakes everything on hockey but can only consider love as a game. Aki Murase is a woman who has been waiting for her lover who went abroad two years ago. These two persons start a relationship while frankly admitting to each other that it is only a love game. …The result is the unfolding of a drama of people with their respective pasts and with their pride as individuals.

Moriyama plays a temp worker who has never had any luck with women. One day, he suddenly starts getting invitations from several beautiful women, and he finds himself confused about how to deal with this new experience of having a "moteki" (a period when one is very popular and attractive to others).

A monster was created from an incident that took place 100 years ago. He possesses super physical ability and can live forever. He yearns for humans and listens to the radio. He picks up things thrown away by other people. The monster dreams of living as a human. One day, he meets a young woman Tsugaru. He falls in love with her.

News about the disappearance of panties is still being covered every day. Kyosuke still wears Aiko Completo's panties to battle evil. Meanwhile, Aiko has mixed emotions and decides to get her panties back. Kyosuke suffers from the loss of Aiko's panties and disappears, but his biggest enemy yet is about to materialise.

Shuji is a young teacher whose confidence and honesty has made him popular with the students. He is engaged to Natsumi, also a teacher at the same high school. At the morning of the new semester, Shuji wakes up with a hangover and no memory of the night before, and a strange young woman in his bed. He feels terrible about possibility of having cheated on his fiancée, but when it turns out the girl is a student in his class Shuji is wrecked with guilt. Things go from bad to worse when the girl, Hikari, makes it clear that she's in love with him and wants to break him and Natsumi apart. Shuji's honest nature makes him want to come clean to everyone about what has happened, but before he has the chance, the secret is out. As his life starts crumbling around him, Shuji still decides to try and save Hikari from herself.