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!

As our friends draw closer to the secret of who really killed Mao's first love, Sana, another lost relic of the Goko clan turns up--the terrible Box of Monstrosity. Mao and the gang pursue the box to free its victims and save lives, but others want to get their hands on it for nefarious purposes...