Funenki

[Machine Translation] The time was Heian. In the capital, it is prophesied that Dainagon Ban, who was accused of the Otenmon Incident, will appear in the form of a demon and spread the seeds of a plague. Koreo Yumikage, an onmyoji, confronts Dainagon's demon, but realizes that an even more powerful and evil demon is behind it. Is this demon, which harbors a grudge against the Fujiwara clan that holds sway in the Imperial Court, a man of great power? Koreo and his companions travel to the land of Ezo in order to discover the true identity of the demon and contain it.

時は平安。都では、応天門の変で罪を被せられた伴大納言が鬼の姿で現れ、疫病の種を撒き散らすと予言していた。陰陽師の弓削是雄は大納言の鬼と相まみえるが、その背後にさらに強大で邪悪な鬼が存在することに気づく。朝廷で実権を握る藤原氏に恨みを抱くというその鬼の正体は、やんごとなき方なのか―。是雄は鬼の正体を突き止め封じるために、仲間とともに蝦夷の地へと赴く。