In the creator of Urotsukidoji: Legend of the Overfiend, La Blue Girl, and Demon Beast Invasion! A monster is going for blood, and just the person-demon Koji can search for the preternatural killer. Helped by a morbid psychic, he follows the grisly trail of victims into a lonely woman. What unspeakable horrors will he find? And so are even Koji's powers enough to curb this devastating threat?

Jonathon Tiberius is often a young robot pilot who is falling for his bunkmate, the tall blonde Leonard Schteinberg. However, their grotesque unit commander has his eye on Jonathon himself. Leonard manages to save Jonathon off their commander's clutches, but at the great cost. Leonard has been shipped out to top lines, and the man and Jonathon only have one evening together. Will it make up for forever of separation?

It began with a bloody sacrificial rite meant to unlock the Gates of Hell. Dark forces descend upon 19-year-old Masao's college, and gang violence and rape would be the order through the day. Soon, demonic entities battle within a conflict that threatens for being global Armageddon! Can Masao save his campus, with all the King from the Underworld certain to his mortal soul?

Las clases no son fáciles para Masato, un estudiante que aspira a novelista. Por supuesto con todas esa bellas chicas en su vida es difícil estudiar. Primero esta la ruda Rie, la hermosa Miku, la alegre Chieri, la fiel Kanna y su amor colegial, Chihiro. Con todas esa chicas para escoger, Masato descubrirá que no hay suficientes estaciones en el año.