In a fierce confrontation, Himari turns the tide against the Nine-Tails after it attacks Yuuto. However, as she taps into her demonic power in anger, she risks succumbing to darkness. The battle concludes, but Himari may be losing a deeper internal struggle.
Haruomi awakens to the power of the Ring of Solomon and decides to take up the role of Annihilator in the Seventh Gospel Organization, a society of demon hunters, in order to grant Zilch her wish. Under orders from the organization, Haruomi and Zilch begin a covert investigation to find a new "branch" at Kanmeikan High School, where they're joined by none other than Murohime. What adventures await them there...?!
Haunted by the untimely deaths of his mother, little sister, and a childhood friend, listless high schooler Haruomi Io has trouble engaging with anything or anyone. Of course, that doesn't mean others have trouble engaging with him-a fact he discovers to his dismay when he finds himself the target of a trigger-happy group calling themselves the "Seventh Gospel Organization." Having newfound enemies may be rough, but Haruomi's unexpected ally in the form of a demoness calling herself Zilch may turn out to be even more of a handful...Still, there's something to be said for a dose of the supernatural (and more than a few buxom girls) when it comes to casting off the doldrums!
Yuuto wird zu einer Versammlung von Oni-Tötern ins Anwesen der Familie Tsuchimikado eingeladen. Dort ist man der Meinung, dass Himari für Yuuto eine Gefahr darstellt, und versucht, die in Himari schlummernde Bestie hervorzulocken ...