January 24, Marine Calendar 1507.
The eight Spiral Seals Hidemoto Keikain had set up throughout Kyoto four hundred years ago had all been broken.
Among them, Nue's Black Pool beneath Nijō Castle had been designated a "high-risk restricted zone" by the World Government.
The Yin-Yang Bureau was responsible for guarding and managing it.
Though this "black water," formed from immense amounts of condensed and liquefied resentment,
was viewed by the onmyoji of the Hundred Demons World, as well as Yoma like Hagoromo Fox,
as utterly dark, evil, filthy, and extremely harmful to humanity,
the World Government did not necessarily see it that way.
Perhaps they simply had not yet found the proper way to use it.
After all, it was an extraordinary substance with extreme properties. It was surely a resource.
And with the fall of Hagoromo Fox's forces, the Gomon-in clan joining them,
and the successive submission of major Yoma organizations such as the Nura Clan in Kanto, the Tono Group in Tohoku, the Eighty-Eight Demons Night Parade in Shikoku, and the Fifty-Three Demons Night Parade in the Tokaido region,
the supernatural forces within Japan's Hundred Demons World had basically been dealt with.
But this was only the beginning.
As stated before, the World Government intended to thoroughly investigate these Yoma organizations from within.
Yoma that committed evil deeds and held little value would be exterminated outright. Those with some value would be imprisoned.
Their final destinations might be Impel Down, Reincarnation Paradise, or the Demon-Sealing Tower that the Yin-Yang Bureau was preparing to establish.
The latter was mainly meant to imprison demons and monsters that might become shikigami.
The next day.
At around 8:27 in the morning.
The weather was misty with drizzling rain.
Yet the Kakeiin Clan's main house was not affected in the slightest. Busy figures