When Nanoka is transported back in time to a supernatural early 20th century, she gets recruited by aloof exorcist Mao. What thread of fate connects them? Together, they seek answers...and kick some demon butt along the way!

Nanoka claims a cursed sword and has it reforged to suit her, but the blade is stolen before she has a chance to wield it. Who does the original weapon belong to, and why do they want it back so badly? Pitched battles ensue, and this time it's Mao's turn to sacrifice himself to save Nanoka... And then Nanoka is taken hostage!