While the Second World War rages, the teenage Mahito, haunted by his mother's tragic death, is relocated from Tokyo to the serene rural home of his new stepmother Natsuko, a woman who bears a striking resemblance to the boy's mother. As he tries to adjust, this strange new world grows even stranger following the appearance of a persistent gray heron, who perplexes and bedevils Mahito, dubbing him the "long-awaited one."

Six complete strangers with widely varying personalities are involuntarily placed in an endless maze of interlocking cube-shaped rooms containing deadly traps.

Moshimo, Japan. The annual fireworks festival is about to take place and a group of schoolboys, arguing over whether they are round or flat when viewed from different angles, set out to find it out.

10 years has passed since the confrontation between Kira and L. Again, Shinigami sends death notes to the ground and due to this, the world soon falls into chaos. Tsukuru is a member of the Death Note special task force team with 6 other investigators including Matsuda who experienced the Kira case of 10 years ago. Mass murders caused by the death note takes place on Wall Street in the U.S., Shibuya in Japan and other places. World famous private investigator Ryuzaki, who is the rightful successor of L, also investigates the mass murders. They discover that 6 death notes exists in the world. A computer virus called Kira spreads in the world. A message in the Kira virus says to turn in 6 death notes. A person who has 6 death notes overwhelm the world. The confrontation begins between the person who wants Kira’s revival and the people who want to stop it.

While settling into married life with Akiko, Ryu is brought into a case involving a woman named Katsuragi Aoi, a member of a pickpocketing ring with most of her teammates murdered from unknown masked vigilantes that Ryu fought as Accel. As the details of the case begin to unravel, Ryu is framed and Akiko believes that he may not be faithful to her. As the clock ticks down, Ryu must solve the case, clear his name, and save his marriage before everything comes to an explosive end!

A mysterious creature destroys 70% of the moon. The creature then warns that if he is not destroyed by March of next year, Earth will be next. The creature also demands that he becomes the homeroom teacher for 3rd grade E class at Kunugigaoka Junior High School. The government is powerless to say no. The creature then becomes the homeroom teacher of 3rd grade E class which consists of failed students including Nagisa Shiota. The creature is called Teacher Koro. Meanwhile, the government requests that the students try to kill Teacher Koro even though he possesses super powers. The government offers a 10 billion yen reward for whomever successfully kills him. The students are confused by the situation, but decide to kill Teacher Koro. When their class begins with Teacher Koro, the students finds themselves having a good time with their new teacher.

Two people meet each other after missing the last train home, leading to a beautiful relationship over five years.

Teiichi Akaba is a student at a prestigious private male high school known for producing important politicians and bureaucrats. His dream is to become the prime minster and make his own country. To help achieve his dream, he wants to become elected as his school's student council president. The elected student president receives privileges and a better chance for promotions later in the political & bureaucrat world. A power struggle takes place surrounding the student election.

With graduation 10 days away, homeroom teacher Hiiragi gathered all 29 students of class 3-A and proclaims them his hostages. His last lesson regards the death of a student that passed away a few months before. Nobody will be able to graduate until the truth is known.

The Mobile Investigative Unit (known as "MIU") of the Tokyo Metropolitan Police Department attempts to solve cases within 24 hours. Detective Kazumi Shima is selected as a new member of MIU. He is intelligent, with excellent observation and communication skills. Yet, he does not trust other people. He is unable to find a partner in MIU and is ordered to partner with Police Officer Ai Ibuki, who works at a police substation. Ibuki applied for MIU, but he failed. He is in excellent physical condition, but he lacks knowledge and experience as a detective. Shima learns about Ibuki's background and he becomes more nervous. Finally, Shima has his first meeting with Ibuki.

Following the ascension to power of Taira no Kiyomori, the Minamoto clan is exiled. Minamoto no Yoritomo meets Masako, the sister of Hōjō Yoshitoki and later marries her. Following this marriage, the gears of Yoshitoki's destiny begin to turn.