Living a troubled home-life, a teenager becomes so stressed out with everything around her that she disappears into a series of fantasy-related books. While trying to escape her situation, she soon finds herself living in feudal Japan with a ninja master and his students who inform her that she's in a separate dimension from her regular life and are to help train together in the way of the ninja. When the training's complete, the girls learn that an evil warlord that left them orphans has intentions on killing them all as well, forcing the girls to team up together with all their training to defeat the madman and live in peace again.

Manami is captured by blood thirsty trigger happy vampires, and taken to their hotel, where they keep prisoners as future meals. They are all instructed to find a partner to survive, when a vampire clan from Transylvania interferes.

After the daughter of Wang Wei is kidnapped by a criminal network and he receives no help from the corrupt police, Wei sets out on a rampage to find her himself. His only ally is Navin — a relentless journalist whose wife has mysteriously disappeared. Fueled by a furious vengeance, the unlikely duo ruthlessly fights against the kidnappers in this explosive martial arts showdown.

Chisato and Mahiro must pay four years of overdue fees or lose their membership in their assassin guild. They take part-time jobs, but find themselves in the middle of an armed robbery and being hunted by other assassins.

Set in 1988 in Hiroshima, Japan, prior to the enactment of the anti-organized crime law. A rumor exists that Detective Shogo Ogami has ties with the yakuza. He is partnered with Detective Shuichi Hioka and they investigate a missing person case involving a financial company employee. Conflicts between opposing yakuza groups become more serious.

A month after Genji Takiya graduates, a new battle for supremacy at Suzuran All-Boys High School begins. Transfer student Kaburagi Kazeo combats Kagami Ryohei for the coveted top spot, amidst a brewing inter-school conflict with Kurosaki Industrial High.

In an alternate Japan, territorial street gangs form opposing factions collectively known as the Tokyo Tribes. The simmering tension between them is about to boil over into all-out war.

Manami suddenly encounters mass murder at a pub on her 22nd birthday as she is hunted down by two warring vampire clans, the Draculas and the Corvins. Manami is a child of prophecy who is meant to help the Draculas overcome their Corvin enemies who have driven them underground. Meanwhile, droves of young men and women are gathered at the Hotel Requiem by a Corvin named Yamada who informs them that the world is about to end, with this hotel being the only refuge.