The purportedly true story of a 23-year-old otaku (Japanese geek) who intervened when a drunk man was harassing a woman on a train. The otaku ultimately started dating with her and chronicled his event and his dates with the woman (who became known as "Hermès") on the Japanese mega-BBS 2channel.

Two teenage best pals attracted to the same boy end up scrambling his life after he walks into a door and is knocked unconscious.

Recruited by a clandestine police organization, "K" must stop a plot by student radicals to create anarchy in Japan. Armed with a hi-tech steel yo-yo, and a new name (Asamiya Saki), she must infiltrate an elite high school to find the terrorists but finds an even more sinister plan is about to unfold.

Six classmates receive an email from Asuka, who they thought had committed suicide, asking them to meet her later that night. But when they are attacked by a girl in a rat mask, the students realize that someone is out for revenge!

Suzuki’s world is shattered when his teenage daughter is brutally attacked. The assailant, Ishihara, son of a politician, brazenly mocks Suzuki as he throws him cover-up money. Angry, Suzuki finds he has no answer to Ishihara and in venting his anger, loses his daughter’s trust too. A sleep-deprived, crazed Suzuki goes to Ishihara’s school wielding a knife. He does not find Ishihara, but instead forms an alliance with an odd group of school misfits called the Zombies. The group’s elusive leader, Pak Sun Shin, decides to train Suzuki, who quits his job and embarks on a punishing programme to win back freedom for his daughter.

Jennifer is a European girl who speaks Japanese a little. She arrives to the funeral in temple in Japanese countryside and meets a boy there. The boy is a juvenile delinquent and works his punishment in temple. Jennifer likes this silent boy and she wants to help him overcome estrangement from the people. Also she helps daughter of the temple's father superior reconcile her parents.

Teru has been brought up in a hill town and spent his childhood conquering the slopes on his bicycle. Being a cycling fanatic, who resents defeat, he joins Kamegaoka High School, which used to boast a powerful cycling club. There he meets Hatomura, an ace of the club who wants to turn around he club which has deteriorated to the point of dissolution, and Yuta, an aloof cycling genius with unshaken confidence in his speed who does not allow others to follow him. Meeting a rival that is faster than him for the first time, Teru joins the club in order to challenge them. His only interest, however, is his own cycling speed. Joining the club teaches Teru the importance of teamwork to support the lead cyclist and to place priority on the victory of the team.

It's three years after the events of the original Battle Royale, and Shuya Nanahara is now an internationally-known terrorist determined to bring down the government. His terrorist group, Wild Seven, stages an attack that levels several buildings in Tokyo on Christmas Day, killing 8000 people. In order for the government to study the benefits of "teamwork", the new students work in pairs, with their collars electronically linked so that if one of them is killed, the other dies as well. They must kill Nanahara in three days - or die.