During the final years of the Taisho Era (circa 1926), the gloomy tea house Ginseikan had a very special patron. Hiruko is a Baku, a being who eats nightmares. Customers come to the tea house every night...

On a stormy night, Isamu witnesses a black phantom ship flying in the sky. He follows a man who has descended from the vessel and ends up at the Terada residence. There he finds four men terrified by a...