This is a world which looks very similar to ours, or possibly a world which shares the same history, but developed in another way. In 1926, the bustling imperial capital of Japan, Tokyo, is a strange blend of newly developed mechanical technology and automatons from the olden days. A great world war had ended not too long ago and another loomed in the horizon, but even with the special procurements in preparation for war and rising anxiety in the city, the general populace were still enjoying their lives full of pleasure and prosperity.
However, there was an influx of atrocious crimes menacing everyone from the poor to the rich: murders in back alleys, child abductions, robberies with arson, currency counterfeiting and property destruction. It did not seem to be work of humans. Accounts of strange persons in the city soon spread, and it was agreed upon that they were the work of the spirits, specifically the tengu. One tengu who had come to the city to enjoy the culture in his own way, Garan, resented being blamed for all these crimes. He sensed that these incidents were linked to his bitter enemy, the kijin, and sought to annihilate them.
[From Hau~ Omochikaeri~!]