Fresh from playing a key role in the Azuma Banquet, Yuuki takes on a new form as he’s lent to Himari’s mother, Fubuki—leading to a joint reward by the mother-daughter pair...!! But as the 7th squad’s slave enjoys the fruits of his labors, dark shadows encroach upon the human world. Women are disappearing one by one from the streets of Yokohama, and the possible involvement of the Eight Thunder Gods has Kyouka teaming up with the 2nd Squad’s commander to investigate!