Three years after the defeat of Gargoyle and Neo-Atlantis, a new threat has surfaced bent on bringing the world under his control. Geiger, using advanced robot technology, is attempting to begin a world war, and take control of the devistated world after the destruction has stopped. Once again, Nadia and Jean must fight to save the world, only this time from itself.

At the behest of her father, Yui Komori goes to live in a secluded mansion, home to the six Sakamaki brothers—Shuu, Reiji, Ayato, Kanato, Laito, and Subaru—a family of vampires. Though at first the siblings are confused as to why the girl has arrived, they soon realize that she is to be their new "sacrificial bride," not to mention their other, more carnal intentions for her. After meeting the brothers, Yui quickly begins to question why her father would have sent her here and why she feels a strange, new pain in her chest. With each brother more sadistic than the last, Yui's life as a captive takes a harrowing turn in her new home. As her days turn into endless nights, and each brother vows to make her his own, Yui falls deeper and deeper into madness and ecstasy.

Hoichiro Ohma works in an office. Everybody knows him as a silent, humble man. Even his girlfriend, Nanase, doesn't suspect that he could be something more, but he is. When a person dies as a victim of murder; when someone kills himself with a curse on his lips; when someone's death needs to be judged, he is there, for he is a Judge Of Darkness. Following the Laws Of Darkness, with a book made of human skin and an unusual parrot, he pronounces judgement over living criminals that would otherwise go free.

The year is 1989. After the nation of Hinomoto was destabilized during the past World War, the rise of new technologies has enabled its revitalization. Modern engineering has given birth to aircraft, gasoline engines, and geomagnetic technology—revolutionizing transportation. Railroads have been rendered nearly obsolete and replaced by more efficient modes of transit. However, a group of lively "Raillords" aims to renew the railroads' former glory. The Raillords, personified as energetic and spirited girls, act as humanoid control modules for their assigned railways. They meet in Ohitoyo City for the Raillord Summit, headed by Suzushiro, a Raillord from Manoka Railways. Together, the group capitalizes on its teamwork to get the railroads back on track, ushering in a "new railroad age." [Written by MAL Rewrite]