Yusuke Yamada

As the sole survivor of a horrendous and rather mysterious accident, teenage Mitsuko's day is off to a bad start. An unstoppable force of nature, a doomed field trip, and a strange case of amnesia easily coexist in a bizarre parallel universe, where a desperate Mitsuko is always on the run from something inexplicable, intangible, and utterly deadly. However, amid piles of fresh corpses, mounds of scorching bullet shells, and rivulets of fragrant adolescent blood, Mitsuko must fight to stay alive, before her already messed-up day becomes even stranger. But one question still remains: who or what is the enemy?

High school student Azusa jumps off from the rooftop of a school building, but she survives. One month later, the school is taken over by group of people wearing bizarre masks. A pregnant teacher is imprisoned, while the head director of the school and male students disappear. Azusa then finds pieces of a puzzle in an envelope given to her by classmate Shigeo. The puzzle pieces holds the key to solve the case. Azusa chases after Shigeo and she sees something which is unimaginable.

Teenager Tsubasa Sato returns to the parallel universe where demons are out to kill every person with the last name of Sato.

After a childhood friend's suicide, Hideaki and his former classmates reunite to pay their respects. Soon after, a DVD, marked X arrives revealing a man being tortured, triggering a flashback in Hideaki, reminding him of witnessing a schoolmate being subjected to humiliating batsu (punishment) games. One evening, Hideaki is kidnapped and when he awakens the next day, he discovers he is in a recreation of his old school-room, along with his fellow classmates. Trapped and held captive by mysterious hooded figures, each of them must now play a brutally violent, version of the punishment game, in order to survive.

A teenager is transported to a parallel world where everyone who shares his family name is being hunted down by the dictatorial government.

When good-for-nothing employee Daichi is attending to a backlog of work, a frightening game of tag targeting people with blood type B begins.

Set in the year 2060, it follows a love story as Tokyo's third Olympics draws near. Takeru Oosawa, who works for the AI Robot Technology Research Lab, is chosen as a member of the national secret project using humanoid robots. With the help of childhood friend and co-worker Youichirou Amano and his sister Saki, Takeru tries his best to reach his objectives. However, the situation changes when Saki's office receives a warning note for terrorism.

Michiko lost her dad in a car accident when she was 10 years old. After the car accident, Michiko has lived with her mother Kyoko. Michiko, now in her 2nd year of high school, gets a cell phone from her mother as a birthday present. Michiko is so excited to have her very first cell phone. Soon afterwards, she is forced into joining social networking site "AvaQ" by classmate, and queen of the classroom, Taeko.

Set in the year 3000 in New Tokyo where this time round, human beings with blood type B are being targeted.

In 2002, “Fukushu Ho” (Revenge Law) has been implemented. “Fukushu Ho” allows victims or victims' family to exact revenge against criminals directly. Yasuyuki is a middle school teacher. He is opposed to “Fukushu Ho,” but he changes his mind after his wife is murdered. Yasuyuki decides to take revenge on the murderer who killed his wife. According to “Fukushu Ho,” Yasuyuki travels to an island which has been designated as the get my revenge location. At the same time, members of a radical environment protection group, who committed terroristic acts indiscriminately, are at the same island. Family members who lost loved ones in the terroristic acts arrive on the island to exact revenge. The victims' families have 18 hours to take revenge. Weapons, food and GPS are given to the families and the locations of the criminals. If the revenge acts are not carried out within 18 hours, the criminals are released.

High school girl and four other people were forced to play a X-game to take responsibility for what they did in the past.

Eight school friends innocently join together to play a game that, if played well, promised to make their greatest dreams come true. But, they soon discover that mistakes may cost them more than even their dreams could tell.

Prologue to "The Chasing World: The Origin" TV series.

One day, it's decided that all people with blood type B have to be killed. There are people in black costumes who chase after and kill everyone with blood type B. Tsukasa is one of those people. Together with her friend Yui she tries to stay alive and staying alive means running because hiding isn't a solution. On the hunt, they meet Masaharu and together they decide to fight against those black costumed creatures.

Eri (Matsubara) is a high school student who is anonymous unlike her friend Mitsuko (Yokoyama) who is the target of amorous advances from their teacher, Ichida (Tsubouchi). Eri comes across a novel way to protect Mitsuko: find a cursed funerary urn that contains ashes reputed to cause death and give said ashes to teacher.

A high school teacher, Masato Saito, is told by his best friend, police officer Shinya Saito, about a strange murder case. The incident was that a woman broke through her belly and had an umbilical cord popping out of her belly, and at the same time three men were said to have blew bubbles from their mouths and died. One day, Shinya's wife, Junko, receives something called Baby Mail. The baby mail says, "I have a grudge against someone who is trying to have a child. I will raise my child." When she opens the attached file "@", the baby cried and the LCD of her cell phone cracked, which was creepy. A month later, she was found in a condition similar to the bizarre incident. However, she was diagnosed as four months pregnant when her body was found, even though she had her period a month ago.

Due to the high suicide rate among youths in Japan, the government implements experiments to uncover the causes behind the high suicide rate. Children are selected and placed in a YSC facility under constant surveillance. At the age of 10, the children are then give a detonator with a red switch. They are told if they press the switch they will die immediately. Most of the children under the experiment, eventually presses the switch and dies. After the completion of the experiment 6 kids remain who did not press the switch. The 6 kids are; strong-minded Masami, weak Naoto, hot-tempered Hiro, impulsive Ryota, wheelchair bound Kimiaki and Aiko who is always thinking of her parents. These 6 kids survived even though they were pressured by project manager Tsukuda to press the switch.

Transfer student Kana is assigned a seat whose previous occupants committed suicide.

A group of convicted murderers is forced to participate in a game of "human bingo" that will decide over whether they'll be executed or not.

Set in a near future where people whose last names are "Sato" become targets of a real tag, and when they are caught, they get killed.