Ranking of Kings

Arima Takuya is a young student whose father, a historian who has conducted various researches, disappeared recently. During a summer vacation Takuya receives a peculiar package from his missing father, along with a letter containing information about the existence of various parallel worlds. At first Takuya doesn't take it seriously, but soon he realizes that he possesses a device that allows him to travel to alternate dimensions. Is his father alive, after all? If so, where is he?

Darkness is moving in, and young exorcist Allen Walker is humanity's greatest hope against the wicked forces conspiring to bring civilization to its knees. Akuma – cruel spirits born of tragedy and lost souls – lurk in every shadow, willing and eager to do the bidding of their leader, the dread Millennium Earl. With an eye cursed to see evil in its truest form and blessed with an arm to slay soul-devouring demons, Allen stands ready to confront the gathering evil. Should he fail, Innocence will be lost forever. The war to decide the fate of mankind has begun – and the carnage will be endless.

In the future, Japan is a wasteland. In the Great Kanto Desert, scattered humans eke out a living in the hot sand. Among them, a short-statured man they call "Sunabozu" makes a living as a bounty hunter. Like a demon of the sand, he seems unbeatable. Yet, like all men, he has a particular weakness for the opposite sex...

Shirou Emiya lost his parents in a fire when he was young and was later adopted by the sorcerer Kiritsugu Emiya. Shirou is drawn into the Holy Grail War summons a female "Servant" known as Saber to protect him and obtain the Holy Grail.